System and method for providing driving route of vehicle

Abstract

The present invention relates to a control server and method for providing a detour route to a vehicle when a terrestrial network does not operate due to a disaster, wherein the control server may comprise: a disaster monitoring manager that monitors a disaster situation by interworking with a national disaster communication network; a road data manager that identifies a situation of a road by interworking with a satellite image provision server and a satellite image analysis server, determines a disaster area, and detects a damaged road on which driving of a vehicle is impossible; a vehicle state manager that monitors a state of the vehicle; a detour route manager that generates a detour route for the vehicle; and a communication manager that communicates with a route guidance apparatus.

Description

Vehicle driving path provision system and method

[0001] This specification relates to a system and method for providing a route for a vehicle, and more specifically, to a system and method for providing an alternative route for a vehicle in the event that a ground network is not functioning due to an accident or disaster.

[0002]

[0003] A navigation system receives a destination as input, acquires road environment information via a terrestrial network such as a commercial mobile communication system, and based on this, can provide the optimal route for the vehicle to reach the destination. Additionally, if the road or driving environment changes due to events such as an accident on the initially provided route via the terrestrial network, the navigation system can provide an alternative route.

[0004] However, the ground network may suddenly cease to function due to disasters or accidents such as fires, earthquakes, or extreme weather events. Alternatively, a vehicle may enter an area where the ground network is not provided. In such cases, the navigation system cannot receive information about the road or driving environment through the ground network, and the vehicle may enter a disaster area without understanding the disaster situation or drive without prior knowledge of the road environment, thereby putting itself at risk or spending a significant amount of time reaching the final destination.

[0005] Therefore, a method is needed to provide information to the vehicle's navigation system when the terrestrial network is not functioning.

[0006]

[0007] The embodiments relate to a device and method capable of providing information, including a detour route, to a vehicle when a ground network is not operating.

[0008] In addition, the embodiments relate to an apparatus and method capable of providing a detour route to a vehicle using a narrow band non-terrestrial network (NB-NTN) provided by a communication satellite and an optical satellite.

[0009] The technical tasks intended to be accomplished in this document are not limited to those mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art from the description below.

[0010]

[0011] According to one embodiment, the route guidance device includes a first terminal that communicates with a terrestrial network, a second terminal that communicates with a narrowband non-terrestrial network, and a control device that guides the driving path of a vehicle. When operating normally, the control device communicates with a control server using the first terminal to transmit location information of the vehicle. When communication with the terrestrial network through the first terminal fails, the control device establishes a communication connection with the control server using the narrowband non-terrestrial network through the second terminal, receives a detour route from the control server through the second terminal connected to the narrowband non-terrestrial network, and can provide the detour route to the navigation system of the vehicle.

[0012] According to one embodiment, the route guidance device further includes a decoder for decoding data received through the narrowband non-terrestrial network, and the detour route transmitted through the narrowband non-terrestrial network is data coded in text format, but may be compressed coded data for specific character terms.

[0013] According to one embodiment, the decoder includes a lookup table that stores the specific character term and the compressed coding data corresponding to the specific character term, and based on the lookup table, obtains the specific character term corresponding to the compressed coding data included in the bypass path, thereby obtaining the bypass path in character format.

[0014] According to one embodiment, a control server that provides a detour route in the event of a disaster by communicating with a route guidance device equipped in a vehicle using a narrowband non-terrestrial network may include a disaster monitoring manager that monitors the disaster situation by linking with a national disaster communication network, a road data manager that identifies road conditions, determines disaster areas, and detects damaged roads where vehicles cannot drive by linking with a satellite image provision server and a satellite image analysis server, a vehicle status manager that monitors the condition of the vehicle, a detour route manager that generates a detour route for the vehicle, and a communication manager that communicates with the route guidance device.

[0015] According to one embodiment, the road data manager can determine a disaster area based on wide-angle low-resolution satellite imagery acquired from an optical satellite by linking with the satellite image providing server and the satellite image analysis server, and can obtain damaged road information by analyzing the disaster area through high-resolution satellite imagery of the disaster area acquired from the optical satellite.

[0016] According to one embodiment, the road data manager can obtain damaged road information by linking with the satellite image providing server and the satellite image analysis server to compare the latest high-resolution satellite image with the previous high-resolution satellite image and detecting changes.

[0017] According to one embodiment, the road data manager can recognize roads from the high-resolution satellite image by linking with the satellite image providing server and the satellite image analysis server, and can obtain damaged road information by comparing the recognized roads with a map to discover unconnected roads.

[0018] According to one embodiment, the road data manager can preprocess wide-angle low-resolution satellite images acquired from the optical satellite in conjunction with the satellite image providing server and the satellite image analysis server to generate general RGB image data, infrared filtered image data, and specific band filtered image data, train an artificial intelligence model using the general RGB image data, infrared filtered image data, and specific band filtered image data as input to acquire a disaster detection model, improve the disaster detection model through additional training reflecting the output error of the disaster detection model, and determine a disaster area based on the trained disaster detection model.

[0019] According to one embodiment, the detour route manager can generate a detour route based on the vehicle's current location and destination by linking with the detour route providing server.

[0020] According to one embodiment, the road data manager updates map information based on damaged road information obtained by analyzing the disaster area, and the detour route manager can generate a detour route based on the updated map information, the vehicle's current location, and the destination by linking with the detour route providing server.

[0021] According to one embodiment, the communication manager transmits the bypass path transmitted through the narrowband non-terrestrial network as data coded in text format, but may use compressed coded data for specific character terms.

[0022] According to one embodiment, the communication manager includes a lookup table that stores the specific character term and the compressed coding data corresponding to the specific character term, and based on the lookup table, obtains the compressed coding data for the specific character term included in the bypass path transmitted through the narrowband non-terrestrial network, and can cause the compressed coding data to be coded for the specific character term instead of the character format coding data.

[0023] According to one embodiment, a method for providing a detour route to a vehicle of a control server that provides a detour route in the event of a disaster by communicating using a route guidance device equipped in the vehicle and a narrowband non-terrestrial network may include the operation of receiving disaster information from a national disaster communication network, the operation of obtaining information on a disaster area and damaged roads, the operation of identifying a vehicle within the disaster area, the operation of notifying the vehicle within the disaster area of ​​the occurrence of a disaster and requesting consent to provide a detour route, the operation of receiving consent to provide a detour route from the vehicle within the disaster area, receiving the current location and destination, and receiving a request to transmit a detour route, the operation of generating a detour route for the vehicle within the disaster area, and the operation of transmitting the generated detour route to the vehicle within the disaster area.

[0024] According to one embodiment, the operation of acquiring information on the disaster area and damaged roads may further include the operation of determining the disaster area based on wide-angle low-resolution satellite images acquired from an optical satellite in conjunction with a satellite image providing server and a satellite image analysis server, and the operation of acquiring information on damaged roads by analyzing the disaster area through high-resolution satellite images of the disaster area acquired from the optical satellite.

[0025] According to one embodiment, the operation of acquiring information on the disaster area and damaged roads may further include an operation of acquiring information on damaged roads by comparing the latest high-resolution satellite image with the previous high-resolution satellite image and detecting changes in conjunction with the satellite image providing server and the satellite image analysis server.

[0026] According to one embodiment, the operation of acquiring information on the disaster area and damaged roads may further include the operation of recognizing roads from the high-resolution satellite imagery by linking with the satellite imagery providing server and the satellite imagery analysis server, and acquiring information on damaged roads by comparing the recognized roads with a map to discover unconnected roads.

[0027] According to one embodiment, the operation of acquiring information on the disaster area and damaged road may further include: an operation of generating general RGB image data, infrared filtered image data, and specific band filtered image data by preprocessing wide-angle low-resolution satellite images acquired from the optical satellite in conjunction with the satellite image providing server and the satellite image analysis server; an operation of acquiring a disaster detection model by training an artificial intelligence model using the general RGB image data, infrared filtered image data, and specific band filtered image data as input; an operation of improving the disaster detection model through additional learning that reflects the output error of the disaster detection model; and an operation of determining the disaster area based on the trained disaster detection model.

[0028] According to one embodiment, the operation of generating a detour route for a vehicle within the disaster area may include the operation of generating a detour route based on the current location and destination of the vehicle within the disaster area by linking with a detour route providing server.

[0029] According to one embodiment, the method further includes an operation of updating map information based on damaged road information obtained by analyzing the disaster area, and the operation of generating a detour route for a vehicle within the disaster area may include an operation of generating a detour route based on the updated map information, the vehicle's current location, and the destination by linking with a detour route providing server.

[0030] According to one embodiment, the operation of transmitting the detour route to a vehicle within the disaster area transmits the detour route transmitted through a narrowband non-terrestrial network as data coded in text format, and for specific character terms, compressed coded data may be used.

[0031] According to one embodiment, the operation of transmitting the bypass path transmitted through the narrowband non-terrestrial network as data coded in text format may include the operation of obtaining compressed coding data for a specific character term included in the bypass path transmitted through the narrowband non-terrestrial network based on a lookup table that stores the specific character term and the compressed coding data corresponding to the specific character term, and the operation of coding the specific character term with the compressed coding data instead of the text format coding data.

[0032]

[0033] According to one embodiment of the present invention, in cases where the ground network is not operating due to a disaster or the like, route information, etc., can be provided using a narrowband non-ground network so that a vehicle can safely arrive at a desired destination.

[0034] According to one embodiment of the present invention, by using an encoding method for optical satellite and data transmission, a bypass route can be provided to a vehicle while resolving the problem of a small data transmission rate of a narrowband non-terrestrial network.

[0035] The effects obtainable from the method and apparatus proposed in this document are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which this document belongs from the description below.

[0036]

[0037] FIG. 1 is a drawing illustrating a system for providing a detour route to a vehicle according to various embodiments of the present invention.

[0038] Figure 2 is a diagram illustrating a simplified configuration of a control server and a vehicle associated with the technology proposed in this document.

[0039] FIG. 3 is a flowchart illustrating a method for providing a detour route to a vehicle according to one embodiment of the present document.

[0040] FIG. 4 is a flowchart illustrating a method for periodically providing a detour route to a vehicle according to one embodiment of the present document.

[0041] FIG. 5 is a flowchart illustrating a method for a vehicle to activate and provide a detour route to a vehicle according to one embodiment of the present document.

[0042] FIG. 6 is a diagram illustrating a method of providing a detour route to a vehicle in the event of a disaster according to various embodiments of the present invention.

[0043] FIG. 7 is a diagram illustrating a method for a control server and an interlocking system according to various embodiments of the present invention to derive a disaster area using artificial intelligence.

[0044] FIG. 8 is a diagram illustrating the configuration of a route guidance device equipped in a vehicle in relation to various embodiments of the present invention.

[0045]

[0046] The advantages and features of this post, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, this post is not limited to the embodiments described below but may be implemented in various different forms; these embodiments are provided merely to ensure that this post is complete and to fully inform those skilled in the art of the scope of this post, and this post is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0047] When one component is referred to as being "connected to" or "coupled to" another component, it includes cases where it is directly connected or coupled to the other component, or cases where another component is interposed. Conversely, when one component is referred to as being "directly connected to" or "directly coupled to" another component, it indicates that no other component is interposed. "And / or" includes each of the mentioned items and all combinations of one or more of them.

[0048] The terms used herein are for describing the embodiments and are not intended to limit this post. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used herein, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components, steps, actions, and / or elements to the mentioned components, steps, actions, and / or elements.

[0049] Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another.

[0050] Therefore, it is obvious that the first component mentioned below may be the second component within the technical scope of this post. Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning commonly understood by those skilled in the art to which this post pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise. Additionally, in the drawings, the thicknesses, proportions, and dimensions of the components are exaggerated for the effective description of the technical content. "And / or" includes all one or more combinations that the associated components may define.

[0051] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein.

[0052] FIG. 1 is a drawing illustrating a system for providing a detour route to a vehicle according to various embodiments of the present invention, and FIG. 2 is a drawing illustrating a simplified configuration of a control server and a vehicle associated with the technology proposed in this document.

[0053] Referring to FIGS. 1 and 2, the vehicle driving path providing system (1) may include a control server (100) that guides a path to a vehicle and provides a detour path to the vehicle when necessary, such as in a disaster situation, and a path guidance device (330) that guides a path to a driver or an autonomous driving device of a vehicle (300).

[0054] Here, the control server (100) can be linked with an interlocking system (200) that provides various services for identifying disaster situations and providing alternative routes.

[0055] Additionally, the control server (100) and the route guidance device (330) can communicate via a terrestrial network (not shown), such as LTE or WiFi. Additionally, the control server (100) and the route guidance device (330) can communicate with each other using satellite communication (400) of a narrow band non-terrestrial network (NB-NTN). According to one embodiment, the control server (100) and the route guidance device (330) can determine which communication network to use among a plurality of communication networks set based on priority. According to one embodiment, the highest priority may be set for communication using WiFi, followed by LTE, and finally NB-NTN satellite communication (400) may have the lowest priority, but are not limited thereto.

[0056] According to another embodiment, the control server (100) and the route guidance device (330) may communicate with each other by simultaneously using multiple communication networks.

[0057] According to one embodiment, the route guidance device (330) equipped in the vehicle can communicate with the control server (100) through a terrestrial network (TN) when in a normal state, and can communicate with the control server (100) through a narrowband non-terrestrial network when the terrestrial network (TN) is not operating or the terrestrial network (TN) is not supported.

[0058] The control server (100) may be a server that provides vehicle-related services to a vehicle or a route guidance device (330) equipped in the vehicle. One of the services provided by the control server (100) may be a route guidance function that informs the vehicle of a driving route to a destination.

[0059] The control server (100) can provide a driving path and / or a detour path to a vehicle (300) or a path guidance device (330) equipped in the vehicle (300) by linking with the linkage system (200).

[0060] Referring to FIG. 1, the interlocking system (200) may include a national disaster communication network (210) that is activated when a disaster occurs, a satellite image provision server (220) that is connected to a plurality of satellites and collects and stores images taken by the satellites, a satellite image analysis server (230) that can identify disaster zones by analyzing the provided satellite images, and a detour route provision server (240) that can determine and provide a detour route using artificial intelligence when a request is made.

[0061] Referring to FIG. 2, the control server (100) may include a program module capable of interacting with various systems or servers of the interlocking system (200). According to one embodiment, the control server (100) may include a disaster monitoring manager (110) capable of monitoring a disaster situation by interacting with a national disaster communication network (210), a road data manager (120) capable of identifying road conditions and detecting damaged roads that are so damaged that driving is impossible by interacting with a satellite image providing server (200) and a satellite image analysis server (230), a vehicle status manager (130) capable of monitoring the condition of a vehicle, a detour route manager (140) capable of deriving a detour route by interacting with a detour route providing server (9240), and a communication manager (150) capable of establishing a communication line with a vehicle route guidance device (330) to perform communication.

[0062] Referring to FIG. 2, the vehicle (300) may include a display (310), a navigation (320), and a route guidance device (330).

[0063] The display (310) can provide various information to the user or driver through the screen. According to one embodiment, the navigation (320) can display map and route information on the display (310) to enable the user to drive the vehicle (300) based on the route information.

[0064] The route guidance device (330) can provide route information to the navigation (320) by linking with the control server (100).

[0065] According to one embodiment, when the vehicle (300) is in normal operation, a user or driver can obtain a driving route through the navigation (320). According to one embodiment, during normal operation, the route guidance device (330) can receive road conditions, such as traffic conditions or accident conditions, from the control server (100) and transmit them to the navigation (320). The navigation (320) can determine the route traveled by the vehicle using the road information received from the route guidance device (330) when requested by the driver and display it on the display (310).

[0066] In addition, normally, the route guidance device (330) can periodically transmit the location of the vehicle to the control server (100), and the control server (100) or the vehicle status manager (130) of the control server (100) can store the location of the vehicle (300) in memory or a database.

[0067] In addition, even in the event of a disaster, the route guidance device (330) can periodically transmit the location of the vehicle to the control server (100), and the control server (100) or the vehicle status manager (130) of the control server (100) can store the location of the vehicle (300) in memory or a database.

[0068] If an abnormal situation, such as a disaster, occurs, the driving route provided to the navigation (320) may become useless. In this case, the route guidance device (330) requests a detour route from the control server (100) based on the driver's request, and upon receiving the detour route from the control server (100), transmits it to the navigation (320) so that the navigation (320) can display the received detour route on the display (310).

[0069] FIG. 3 is a flowchart illustrating a method for providing a detour route to a vehicle according to one embodiment of the present document.

[0070] Referring to FIG. 3, in operation S210, the control server (100) or the disaster monitoring manager (110) can receive disaster information from the national disaster communication network (210). According to one embodiment, the national disaster communication network (210) recognizes that a disaster has occurred (S205) and transmits the disaster information to the control server (100), thereby allowing the control server (100) or the disaster monitoring manager (110) to receive the disaster information.

[0071] In operation S220, the control server (100) or the road data manager (120) may request road and terrain analysis and disaster area information related to the disaster from the satellite image analysis server (230). Upon receiving this, the satellite image analysis server (230) may request the latest images of the disaster area from the satellite image provision server (220) (S222), receive the latest images of the disaster area from the satellite image provision server (220) (S224), and analyze the roads and terrain based on the received latest images of the disaster area to transmit the disaster area detection and analysis results to the control server (100).

[0072] According to one embodiment, the satellite image analysis server (230) can detect a damaged road by comparing the received latest image with the previous image to detect a change.

[0073] In accordance with other implementations, the satellite image analysis server (230) can recognize roads from the latest images and compare the recognized roads with a map to identify unconnected roads as damaged roads.

[0074] In operation S230, the control server (100) can receive road and terrain analysis results and disaster area detection results transmitted by the satellite image analysis server (230).

[0075] According to another embodiment, the control server (100) or the road data manager (120) may directly request the latest images of the disaster area from the satellite image providing server (220). The control server (100) or the road data manager (120) may receive the latest images of the disaster area from the satellite image providing server (220) and request road and terrain analysis and disaster area information while transmitting the latest images to the satellite image analysis server (230). Additionally, the control server (100) or the road data manager (120) may request road and terrain analysis and disaster area information while transmitting to the satellite image analysis server (230) images after performing image processing to reduce noise on the received latest images and to adjust the orientation of each image and the area included in each image, for example, general RGB image data and / or infrared and specific band filtered image data. The satellite image analysis server (230) can analyze roads and terrain based on the latest received images and transmit the disaster area detection and analysis results to the control server (100).

[0076] According to one embodiment, the control server (100) or the road data manager (120) may update map information based on the received disaster area detection and analysis results. That is, the control server (100) or the road data manager (120) may update map information based on information about damaged roads and display information about damaged roads on the map.

[0077] In operation S240, the control server (100) or the detour route manager (140) can identify vehicles within the disaster area. According to one embodiment, the control server (100) or the vehicle status manager (130) periodically acquires the location of a vehicle (300) and stores it in a database, and the detour route manager (140) can identify vehicles when the location of the vehicle (300) stored in the database is within the disaster area.

[0078] In operation S250, the control server (100) can notify all vehicles confirmed to be within the disaster area of ​​the occurrence of the disaster and send a message to the route guidance device (330) of the vehicle (300) requesting consent to provide a detour route. According to one embodiment, the message may be transmitted using NB-NTN satellite communication (400). According to another embodiment, if the route device (330) is also connected to a terrestrial network, the message may be additionally transmitted using the terrestrial network.

[0079] In operation S260, the route guidance device (330) may accept the provision of a detour route, provide current location and destination information, and transmit a message requesting the transmission of a detour route to the control server (100) via satellite communication (400). In operation S260, the control server (100) may receive, via satellite communication (400), a message from the route guidance device (330) equipped in the vehicle (300) that accepts the provision of a detour route, provides current location and destination information, and requests the transmission of a detour route.

[0080] In operation S270, the control server (100) or the detour route manager (140) may request the detour route providing server (240) to create a detour route for the vehicle that received the message. According to one embodiment, the control server (100) or the detour route manager (140) may request the creation of a detour route by providing the current location and destination information received from the route guidance device (330) of the vehicle (300) to the detour route providing server (240).

[0081] The detour route providing server (240) can generate a detour route for each vehicle that has received current location and destination information.

[0082] In operation S280, the control server (100) or the bypass path manager (140) can receive a bypass path generated from the bypass path providing server (240).

[0083] In operation S290, the control server (100) or the communication manager (150) can transmit the detour route for each vehicle received from the detour route providing server (240) to the route guidance device (300) of each vehicle via satellite communication (400).

[0084] Finally, the route guidance device (300) can provide the received detour route information to the navigation (320) so that the navigation (320) can display the detour route on the display (310).

[0085] According to one embodiment, the driver can drive along the detour route displayed on the display (310) to exit the disaster area and complete evacuation. However, according to another embodiment, if the driver fails to exit the disaster area even while driving along the detour route displayed on the display (310), the route guidance device (300) may request the control server (100) to generate a new detour route.

[0086] According to another embodiment, as illustrated in FIG. 3, the control server (100) may receive disaster information and, after initially providing a detour route to a vehicle within the disaster area, periodically provide a detour route to a vehicle that is still remaining in the disaster area.

[0087] FIG. 4 is a flowchart illustrating a method for periodically providing a detour route to a vehicle according to one embodiment of the present document.

[0088] Referring to FIG. 4, in operation S310, the control server (100) or the road data manager (120) may periodically request road and terrain analysis and disaster area information from the satellite image analysis server (230) after the occurrence of a disaster.

[0089] According to another embodiment, when the control server (100) or communication manager (150) receives a message from a vehicle that has transmitted a detour route stating that evacuation using the detour route has not been completed, or receives a message requesting a new detour route, it may request road and terrain analysis and disaster area information from the satellite image analysis server (230).

[0090] The satellite image analysis server (230) that receives this can request the latest image of the disaster area from the satellite image provision server (220) (S312), receive the latest image of the disaster area from the satellite image provision server (220) (S314), and analyze the roads and terrain based on the received latest image of the disaster area to transmit the disaster area detection and analysis results to the control server (100).

[0091] According to one embodiment, the satellite image analysis server (230) can detect a damaged road by comparing the received latest image with the previous image to detect a change.

[0092] In accordance with other implementations, the satellite image analysis server (230) can recognize roads from the latest images and compare the recognized roads with a map to identify unconnected roads as damaged roads.

[0093] In operation S320, the control server (100) or the road data manager (120) can receive the results of analyzing the road and terrain and the disaster area information transmitted by the satellite image analysis server (230).

[0094] According to another embodiment, the control server (100) or the road data manager (120) may directly request the latest images of the disaster area from the satellite image providing server (220). The control server (100) or the road data manager (120) may receive the latest images of the disaster area from the satellite image providing server (220) and request road and terrain analysis and disaster area information while transmitting the latest images to the satellite image analysis server (230). Additionally, the control server (100) or the road data manager (120) may request road and terrain analysis and disaster area information while transmitting the images to the satellite image analysis server (230) after performing image processing to reduce noise on the received latest images and to adjust the orientation of each image and the area included in each image. The satellite image analysis server (230) can analyze roads and terrain based on the latest received images and transmit the disaster area detection and analysis results to the control server (100) or the road data manager (120).

[0095] According to one embodiment, the control server (100) or the road data manager (120) may update map information based on the received disaster area detection and analysis results. That is, the control server (100) may update map information based on information about damaged roads and display information about damaged roads on the map.

[0096] In operation S330, the control server (100) or the detour route manager (140) can identify vehicles within the disaster area. According to one embodiment, the control server (100) or the vehicle status manager (130) periodically acquires the location of a vehicle (300) and stores it in a database, and the detour route manager (140) can identify vehicles when the location of the vehicle (300) stored in the database is within the disaster area. Even in the event of a disaster, the control server (100) or the vehicle status manager (130) can periodically acquire the location of the vehicle (300). According to one embodiment, the control server (100) or the vehicle status manager (130) can periodically acquire the location of the vehicle through NB-NTN type satellite communication (400).

[0097] In operation S340, the control server (100) or the detour route manager (140) can determine whether there is a vehicle newly entering the disaster area, excluding vehicles that were already in the disaster area, among the vehicles in the confirmed disaster area.

[0098] In case there is a vehicle that has newly entered the disaster area in operation S340, the control server (100) or the communication manager (150) may, in operation S350, transmit a message to the route guidance device (330) of the vehicle (300) notifying of the occurrence of the disaster and requesting consent to provide a detour route. According to one embodiment, the message may be transmitted using NB-NTN satellite communication (400). According to another embodiment, if the route guidance device (330) is also connected to a terrestrial network, the message may be additionally transmitted using the terrestrial network.

[0099] In operation S360, the route guidance device (330) may accept the provision of a detour route, provide current location and destination information, and transmit a message requesting the transmission of the detour route to the control server (100) via satellite communication (400). In operation S360, the control server (100) or the communication manager (150) may receive, via satellite communication (400), a message requesting the provision of a detour route, providing current location and destination information, and transmitting the detour route from the route guidance device (330) newly installed in the vehicle (300).

[0100] In operation S370, the control server (100) or the detour route manager (140) may request the detour route provider server (240) to create a detour route for all vehicles in the disaster area, including vehicles newly recognized as existing in the disaster area. According to one embodiment, the control server (100) or the detour route manager (140) may request the creation of a detour route by providing the detour route provider server (240) with current location and destination information received from the route guidance device (330) of a vehicle (300) newly recognized as existing in the disaster area. Additionally, the control server (100) or the detour route manager (140) may request the creation of a detour route for vehicles existing in the disaster area by providing the detour route provider server (240) with current location information and existing destination information that were periodically received and stored in a database.

[0101] The detour route providing server (240) can generate a detour route for each vehicle that has received current location and destination information.

[0102] In operation S380, the control server (100) or the bypass path manager (140) can receive a bypass path generated from the bypass path providing server (240).

[0103] In operation S390, the control server (100) or the communication manager (150) can transmit the detour route for each vehicle received from the detour route providing server (240) to the route guidance device (300) of each vehicle via satellite communication (400).

[0104] Finally, the route guidance device (300) can provide the received detour route information to the navigation (320) so that the navigation (320) can display the detour route on the display (310).

[0105] According to one embodiment, the driver can drive along the detour route displayed on the display (310) to exit the disaster area and complete evacuation. However, according to another embodiment, if the driver fails to exit the disaster area even while driving along the detour route displayed on the display (310), the route guidance device (300) may request the control server (100) to generate a new detour route.

[0106] FIG. 5 is a flowchart illustrating a method for a vehicle to activate and provide a detour route to a vehicle according to one embodiment of the present document.

[0107] Referring to FIG. 5, in operation S410, the route guidance device (330) can receive disaster information from the national disaster communication network (210). According to one embodiment, the national disaster communication network (210) recognizes that a disaster has occurred (S405) and transmits the disaster information to the route guidance device (330), thereby allowing the route guidance device (330) to receive the disaster information. For example, if the vehicle (300) is outside the disaster area, the route guidance device (330) of the vehicle (300) cannot receive information about the disaster area from the control server (100) and can receive disaster information from the national disaster communication network (210). Then, the route guidance device (330) can decide whether to request a detour route from the control server (100). For example, the route guidance device (330) may request a detour route from the control server (100) if, based on the received disaster information, it appears that the route the vehicle (330) is traveling on passes through the area where the disaster occurred. According to another embodiment, the route guidance device (330) may request a detour route unconditionally if it recognizes the fact that a disaster has occurred.

[0108] When the route guidance device (330) decides to request a detour route, it may provide current location and destination information in operation S420 and transmit a message requesting the transmission of a detour route to the control server (100) via satellite communication (400). According to one embodiment, the route guidance device (330) may additionally transmit a message accepting the provision of a detour route.

[0109] In operation S430, the control server (100) or the road data manager (120) may request road and terrain analysis and disaster area information related to the disaster from the satellite image analysis server (230). Upon receiving this, the satellite image analysis server (230) may request the latest images of the disaster area from the satellite image provision server (220) (S432), receive the latest images of the disaster area from the satellite image provision server (220) (S434), and analyze the roads and terrain based on the received latest images of the disaster area to transmit the disaster area detection and analysis results to the control server (100).

[0110] According to one embodiment, the satellite image analysis server (230) can detect a damaged road by comparing the received latest image with the previous image to detect a change.

[0111] In accordance with other implementations, the satellite image analysis server (230) can recognize roads from the latest images and compare the recognized roads with a map to identify unconnected roads as damaged roads.

[0112] In operation S440, the control server (100) or the road data manager (120) can receive the road and terrain analysis results and the disaster area detection results transmitted by the satellite image analysis server (230).

[0113] According to another embodiment, the control server (100) or the road data manager (120) may directly request the latest images of the disaster area from the satellite image providing server (220). The control server (100) may receive the latest images of the disaster area from the satellite image providing server (220) and request road and terrain analysis and disaster area information while transmitting the latest images to the satellite image analysis server (230). Additionally, the control server (100) or the road data manager (120) may request road and terrain analysis and disaster area information while transmitting to the satellite image analysis server (230) images after performing image processing to reduce noise on the received latest images and to adjust the orientation of each image and the area included in each image, for example, general RGB image data and / or infrared and specific band filtered image data. The satellite image analysis server (230) can analyze roads and terrain based on the latest received images and transmit the disaster area detection and analysis results to the control server (100) or the road data manager (120).

[0114] According to one embodiment, the control server (100) or the road data manager (120) may update map information based on the received disaster area detection and analysis results. That is, the control server (100) or the road data manager (120) may update map information based on information about damaged roads and display information about damaged roads on the map.

[0115] In operation S450, the control server (100) or the detour route manager (140) may request the detour route providing server (240) to create a detour route for a vehicle that has requested a detour route. According to one embodiment, the control server (100) or the detour route manager (140) may request the creation of a detour route by providing the current location and destination information received from the route guidance device (330) of the vehicle (300) to the detour route providing server (240).

[0116] The detour route providing server (240) can generate a detour route for a vehicle that has received current location and destination information based on the vehicle's current location and destination information.

[0117] In operation S460, the control server (100) or the bypass path manager (140) can receive a bypass path generated from the bypass path providing server (240).

[0118] In operation S470, the control server (100) or the communication manager (150) can transmit the bypass route received from the bypass route providing server (240) to the route guidance device (300) via satellite communication (400).

[0119] Finally, the route guidance device (300) can provide the received detour route information to the navigation (320) so that the navigation (320) can display the detour route on the display (310).

[0120] According to one embodiment, the driver can drive along the detour route displayed on the display (310) to exit the disaster area and complete evacuation. However, according to another embodiment, if the driver fails to exit the disaster area even while driving along the detour route displayed on the display (310), the route guidance device (300) may request the control server (100) to generate a new detour route.

[0121] In one embodiment of FIG. 5, when a disaster occurs, the route guidance device (330) inside the vehicle (330) first requests a detour route from the control server (100). In one embodiment of FIG. 5, a detour route can be requested according to the flowchart of FIG. 5 not only when a disaster occurs but also during normal times. According to one embodiment, if the route guidance device (330) is not connected to the control server (100) or other navigation-related servers through a ground network, a detour route can be set through the flowchart of FIG. 5. Alternatively, even if the vehicle's navigation system is malfunctioning, the route guidance device (330) can set a detour route through the flowchart of FIG. 5.

[0122] Figures 3 to 5 described above provide a flowchart of operations for providing a detour route to a vehicle (300) in the event of a disaster. Below, the specific operations performed by the control server (100) or the interlocking system (200) in each operation of the flowchart will be explained in detail.

[0123] The control server (100) can detect and analyze accident areas or disaster areas based on image information received by the optical satellite (300). According to one embodiment, the control server (100) can detect and analyze accidents and disasters by linking with the satellite image analysis server (230) and using an artificial intelligence-based disaster detection and analysis algorithm.

[0124] FIG. 6 is a diagram illustrating a method of providing a detour route to a vehicle in the event of a disaster according to various embodiments of the present invention.

[0125] Referring to FIG. 6, the control server (100) and the linkage system (200) linked with the control server (100) can simultaneously perform path search and generation for multiple vehicles, not just a single vehicle.

[0126] Referring to FIG. 6, in operation S610, the control server (100) can recognize that a disaster has occurred by the disaster monitoring manager (110) receiving a disaster occurrence message or disaster information from the national disaster communication network (210). The control server (100) can also recognize specific disaster situations and disaster areas through wide-angle low-resolution satellite images acquired from an optical satellite by linking with the linkage system (200).

[0127] In operation S620, the control server (100) and the interlocking system (200) can be interconnected to analyze the accident area or disaster area using high-resolution satellite imagery of the accident or disaster area obtained from an optical satellite.

[0128] In operation S630, the control server (100) and the linkage system (200) can link to recognize and convert into data objects and vehicles around the disaster area through disaster area analysis.

[0129] In operation S640, the control server (100) and the linkage system (200) can link to generate a route of surrounding vehicles that are recognized and converted into data based on disaster area analysis. The route generated by the linkage of the control server (100) and the linkage system (200) may be a new route or a detour route that is different from the existing route of surrounding vehicles.

[0130] According to one embodiment, the control server (100) and the linkage system (200) can recognize a disaster area using artificial intelligence.

[0131] FIG. 7 is a diagram illustrating a method for a control server and an interlocking system according to various embodiments of the present invention to derive a disaster area using artificial intelligence.

[0132] Referring to FIG. 7, in operation S710, the satellite image analysis server (230) of the control server (100) or the linkage system (200) can preprocess the satellite image to generate general RGB image data and infrared and specific band filtered image data.

[0133] In operation S720, the satellite image analysis server (230) of the control server (100) or the linked system (200) can set up an artificial intelligence-based disaster detection model and train the set disaster detection model by inputting general RGB image data generated by preprocessing satellite images in operation S710 and infrared and specific band filtered image data into the set disaster detection model.

[0134] In operation S730, the satellite image analysis server (230) of the control server (100) or the linked system (200) can update the disaster detection model by adding data or reflecting errors in the disaster area output from the disaster detection model.

[0135] In operation S740, the satellite image analysis server (230) of the control server (100) or the linked system (200) can derive a disaster area using a learned disaster detection model.

[0136] As described above, the control server (100) and the linkage system (200) can link to derive a disaster area and create a new route for multiple vehicles around the disaster area and provide it to each vehicle (300).

[0137] In this document, if the vehicle (10) fails to establish a communication connection with the control server (100) via the terrestrial network (TN), it can establish a communication connection with the control server (100) using the narrowband non-terrestrial network (NB-NTN) or satellite communication (400) to receive a changed driving route or detour route. Here, the narrowband non-terrestrial network (NB-NTN) is a satellite communication network via a communication satellite, and the data transmission speed is 256 Kbps or less and may be significantly lower than that of the terrestrial network (TN).

[0138] Therefore, according to one embodiment, when the control server (100) transmits a driving path to a vehicle (30) via a narrowband non-ground network (NB-NTN), it can transmit it as text rather than video. Additionally, the control server (100) can further reduce the size of the data by encoding frequently used terms in the text-based driving path data and transmit it to the vehicle (300). For example, 'left turn' can be encoded as '0x01' and 'right turn' can be encoded as '0x02'. Here, '0x' is a symbol indicating that it is a hexadecimal number, and '0x01' and '0x02' can be 8-bit data. That is, 6 bytes can be used to represent 'left turn' as text, but by encoding it, only 1 byte can be used to represent 'left turn'. To distinguish it from data representing uncoded characters, the 1-byte code assigned to each term may be a code that has not been used to represent existing characters. Alternatively, according to another embodiment, to distinguish it from uncoded data, an identifier indicating that it is coded may be additionally added to display 'left turn'. For example, '0xFF01' may be used to display 'left turn'. When using such an identifier, more terms can be coded, and the size of the character-type driving path data can be further reduced.

[0139] The coded terms may be stored in a lookup table in the vehicle (300) and the control server (100). The control server (100) and the vehicle (300) can generate character data by converting the terms into codes using the lookup table, and the vehicle (300) and the control server (100) can restore the character data by obtaining the terms corresponding to the codes using the lookup table. Accordingly, the control server (100) and the vehicle (300) can convert the terms into codes by having an encoder, and the vehicle (300) and the control server (100) can convert the codes into terms by having a decoder.

[0140] Although it has been described that character-based driving path data including term encoding is used when the control server (100) and the vehicle (300) or the route guidance device (330) equipped in the vehicle (300) communicate using a narrowband non-terrestrial network (NB-NTN), character-based driving path data including term encoding can also be used when the control server (100) and the vehicle (10) communicate through a terrestrial network (TN).

[0141] FIG. 8 is a diagram illustrating the configuration of a route guidance device equipped in a vehicle in relation to various embodiments of the present invention.

[0142] Referring to FIG. 8, the route guidance device (330) may be equipped with a first terminal (810) that communicates with a terrestrial network (TN), a second terminal (820) that communicates with a narrowband non-terrestrial network, and a control device (830) that manages the driving path of the vehicle. Additionally, the vehicle (10) may further include an encoder / decoder (840) that obtains text-format data by encoding text-format data or decoding encoded data according to a method that includes data coded in text format and compressed coded data for specific text terms.

[0143] The control device (830) performs the operation of the route guidance device (330) shown in FIGS. 2 to 5, and is initially connected to the control server (100) via the terrestrial network (TN), and if communication via the terrestrial network (TN) fails, it is connected to the control server (100) via the narrowband-non-terrestrial network (NB-NTN) to obtain a driving path for moving the vehicle (300) to a destination.

[0144] The encoder / decoder (840) includes a lookup table that stores a specific character term and compressed coding data corresponding to the specific character term, and can encode data to be transmitted through a narrowband-non-terrestrial network by referring to the lookup table, and can decode data in character format by obtaining a specific character term corresponding to the compressed coding data based on the lookup table for the encoded data received through the narrowband-non-terrestrial network.

[0145] The configuration shown in FIG. 8 illustrates only the configuration related to the operation presented in this document, and the route guidance device may include other configurations for linking with navigation in addition to that shown in FIG. 8.

[0146]

[0147] This document has been described with reference to embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of this publication should be determined by the technical concept of the appended claims. The advantages and features of this publication, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, this publication is not limited to the embodiments disclosed below but may be implemented in various different forms; these embodiments are provided merely to ensure that this publication is complete and to fully inform those skilled in the art of the scope of this publication, and this publication is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0148] When one component is referred to as being "connected to" or "coupled to" another component, it includes cases where it is directly connected or coupled to the other component, or cases where another component is interposed. Conversely, when one component is referred to as being "directly connected to" or "directly coupled to" another component, it indicates that no other component is interposed. "And / or" includes each of the mentioned items and all combinations of one or more of them.

[0149] The terms used herein are for describing the embodiments and are not intended to limit this post. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used herein, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components, steps, actions, and / or elements to the mentioned components, steps, actions, and / or elements.

[0150] Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another.

[0151] Therefore, it is obvious that the first component mentioned below may be the second component within the technical scope of this post. Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning commonly understood by those skilled in the art to which this post pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise. Additionally, in the drawings, the thicknesses, proportions, and dimensions of the components are exaggerated for the effective description of the technical content. "And / or" includes all one or more combinations that the associated components may define.

[0152] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein.

[0153] FIG. 1 is a drawing illustrating a system for providing a detour route to a vehicle according to various embodiments of the present invention, and FIG. 2 is a drawing illustrating a simplified configuration of a control server and a vehicle associated with the technology proposed in this document.

[0154] Referring to FIGS. 1 and 2, the vehicle driving path providing system (1) may include a control server (100) that guides a path to a vehicle and provides a detour path to the vehicle when necessary, such as in a disaster situation, and a path guidance device (330) that guides a path to a driver or an autonomous driving device of a vehicle (300).

[0155] Here, the control server (100) can be linked with an interlocking system (200) that provides various services for identifying disaster situations and providing alternative routes.

[0156] Additionally, the control server (100) and the route guidance device (330) can communicate via a terrestrial network (not shown), such as LTE or WiFi. Additionally, the control server (100) and the route guidance device (330) can communicate with each other using satellite communication (400) of a narrow band non-terrestrial network (NB-NTN). According to one embodiment, the control server (100) and the route guidance device (330) can determine which communication network to use among a plurality of communication networks set based on priority. According to one embodiment, the highest priority may be set for communication using WiFi, followed by LTE, and finally NB-NTN satellite communication (400) may have the lowest priority, but are not limited thereto.

[0157] According to another embodiment, the control server (100) and the route guidance device (330) may communicate with each other by simultaneously using multiple communication networks.

[0158] According to one embodiment, the route guidance device (330) equipped in the vehicle can communicate with the control server (100) through a terrestrial network (TN) when in a normal state, and can communicate with the control server (100) through a narrowband non-terrestrial network when the terrestrial network (TN) is not operating or the terrestrial network (TN) is not supported.

[0159] The control server (100) may be a server that provides vehicle-related services to a vehicle or a route guidance device (330) equipped in the vehicle. One of the services provided by the control server (100) may be a route guidance function that informs the vehicle of a driving route to a destination.

[0160] The control server (100) can provide a driving path and / or a detour path to a vehicle (300) or a path guidance device (330) equipped in the vehicle (300) by linking with the linkage system (200).

[0161] Referring to FIG. 1, the interlocking system (200) may include a national disaster communication network (210) that is activated when a disaster occurs, a satellite image provision server (220) that is connected to a plurality of satellites and collects and stores images taken by the satellites, a satellite image analysis server (230) that can identify disaster zones by analyzing the provided satellite images, and a detour route provision server (240) that can determine and provide a detour route using artificial intelligence when a request is made.

[0162] Referring to FIG. 2, the control server (100) may include a program module capable of interacting with various systems or servers of the interlocking system (200). According to one embodiment, the control server (100) may include a disaster monitoring manager (110) capable of monitoring a disaster situation by interacting with a national disaster communication network (210), a road data manager (120) capable of identifying road conditions and detecting damaged roads that are so damaged that driving is impossible by interacting with a satellite image providing server (200) and a satellite image analysis server (230), a vehicle status manager (130) capable of monitoring the condition of a vehicle, a detour route manager (140) capable of deriving a detour route by interacting with a detour route providing server (9240), and a communication manager (150) capable of establishing a communication line with a vehicle route guidance device (330) to perform communication.

[0163] Referring to FIG. 2, the vehicle (300) may include a display (310), a navigation (320), and a route guidance device (330).

[0164] The display (310) can provide various information to the user or driver through the screen. According to one embodiment, the navigation (320) can display map and route information on the display (310) to enable the user to drive the vehicle (300) based on the route information.

[0165] The route guidance device (330) can provide route information to the navigation (320) by linking with the control server (100).

[0166] According to one embodiment, when the vehicle (300) is in normal operation, a user or driver can obtain a driving route through the navigation (320). According to one embodiment, during normal operation, the route guidance device (330) can receive road conditions, such as traffic conditions or accident conditions, from the control server (100) and transmit them to the navigation (320). The navigation (320) can determine the route traveled by the vehicle using the road information received from the route guidance device (330) when requested by the driver and display it on the display (310).

[0167] In addition, normally, the route guidance device (330) can periodically transmit the location of the vehicle to the control server (100), and the control server (100) or the vehicle status manager (130) of the control server (100) can store the location of the vehicle (300) in memory or a database.

[0168] In addition, even in the event of a disaster, the route guidance device (330) can periodically transmit the location of the vehicle to the control server (100), and the control server (100) or the vehicle status manager (130) of the control server (100) can store the location of the vehicle (300) in memory or a database.

[0169] If an abnormal situation, such as a disaster, occurs, the driving route provided to the navigation (320) may become useless. In this case, the route guidance device (330) requests a detour route from the control server (100) based on the driver's request, and upon receiving the detour route from the control server (100), transmits it to the navigation (320) so that the navigation (320) can display the received detour route on the display (310).

[0170] FIG. 3 is a flowchart illustrating a method for providing a detour route to a vehicle according to one embodiment of the present document.

[0171] Referring to FIG. 3, in operation S210, the control server (100) or the disaster monitoring manager (110) can receive disaster information from the national disaster communication network (210). According to one embodiment, the national disaster communication network (210) recognizes that a disaster has occurred (S205) and transmits the disaster information to the control server (100), thereby allowing the control server (100) or the disaster monitoring manager (110) to receive the disaster information.

[0172] In operation S220, the control server (100) or the road data manager (120) may request road and terrain analysis and disaster area information related to the disaster from the satellite image analysis server (230). Upon receiving this, the satellite image analysis server (230) may request the latest images of the disaster area from the satellite image provision server (220) (S222), receive the latest images of the disaster area from the satellite image provision server (220) (S224), and analyze the roads and terrain based on the received latest images of the disaster area to transmit the disaster area detection and analysis results to the control server (100).

[0173] According to one embodiment, the satellite image analysis server (230) can detect a damaged road by comparing the received latest image with the previous image to detect a change.

[0174] In accordance with other implementations, the satellite image analysis server (230) can recognize roads from the latest images and compare the recognized roads with a map to identify unconnected roads as damaged roads.

[0175] In operation S230, the control server (100) can receive road and terrain analysis results and disaster area detection results transmitted by the satellite image analysis server (230).

[0176] According to another embodiment, the control server (100) or the road data manager (120) may directly request the latest images of the disaster area from the satellite image providing server (220). The control server (100) or the road data manager (120) may receive the latest images of the disaster area from the satellite image providing server (220) and request road and terrain analysis and disaster area information while transmitting the latest images to the satellite image analysis server (230). Additionally, the control server (100) or the road data manager (120) may request road and terrain analysis and disaster area information while transmitting to the satellite image analysis server (230) images after performing image processing to reduce noise on the received latest images and to adjust the orientation of each image and the area included in each image, for example, general RGB image data and / or infrared and specific band filtered image data. The satellite image analysis server (230) can analyze roads and terrain based on the latest received images and transmit the disaster area detection and analysis results to the control server (100).

[0177] According to one embodiment, the control server (100) or the road data manager (120) may update map information based on the received disaster area detection and analysis results. That is, the control server (100) or the road data manager (120) may update map information based on information about damaged roads and display information about damaged roads on the map.

[0178] In operation S240, the control server (100) or the detour route manager (140) can identify vehicles within the disaster area. According to one embodiment, the control server (100) or the vehicle status manager (130) periodically acquires the location of a vehicle (300) and stores it in a database, and the detour route manager (140) can identify vehicles when the location of the vehicle (300) stored in the database is within the disaster area.

[0179] In operation S250, the control server (100) can notify all vehicles confirmed to be within the disaster area of ​​the occurrence of the disaster and send a message to the route guidance device (330) of the vehicle (300) requesting consent to provide a detour route. According to one embodiment, the message may be transmitted using NB-NTN satellite communication (400). According to another embodiment, if the route device (330) is also connected to a terrestrial network, the message may be additionally transmitted using the terrestrial network.

[0180] In operation S260, the route guidance device (330) may accept the provision of a detour route, provide current location and destination information, and transmit a message requesting the transmission of a detour route to the control server (100) via satellite communication (400). In operation S260, the control server (100) may receive, via satellite communication (400), a message from the route guidance device (330) equipped in the vehicle (300) that accepts the provision of a detour route, provides current location and destination information, and requests the transmission of a detour route.

[0181] In operation S270, the control server (100) or the detour route manager (140) may request the detour route providing server (240) to create a detour route for the vehicle that received the message. According to one embodiment, the control server (100) or the detour route manager (140) may request the creation of a detour route by providing the current location and destination information received from the route guidance device (330) of the vehicle (300) to the detour route providing server (240).

[0182] The detour route providing server (240) can generate a detour route for each vehicle that has received current location and destination information.

[0183] In operation S280, the control server (100) or the bypass path manager (140) can receive a bypass path generated from the bypass path providing server (240).

[0184] In operation S290, the control server (100) or the communication manager (150) can transmit the detour route for each vehicle received from the detour route providing server (240) to the route guidance device (300) of each vehicle via satellite communication (400).

[0185] Finally, the route guidance device (300) can provide the received detour route information to the navigation (320) so that the navigation (320) can display the detour route on the display (310).

[0186] According to one embodiment, the driver can drive along the detour route displayed on the display (310) to exit the disaster area and complete evacuation. However, according to another embodiment, if the driver fails to exit the disaster area even while driving along the detour route displayed on the display (310), the route guidance device (300) may request the control server (100) to generate a new detour route.

[0187] According to another embodiment, as illustrated in FIG. 3, the control server (100) may receive disaster information and, after initially providing a detour route to a vehicle within the disaster area, periodically provide a detour route to a vehicle that is still remaining in the disaster area.

[0188] FIG. 4 is a flowchart illustrating a method for periodically providing a detour route to a vehicle according to one embodiment of the present document.

[0189] Referring to FIG. 4, in operation S310, the control server (100) or the road data manager (120) may periodically request road and terrain analysis and disaster area information from the satellite image analysis server (230) after the occurrence of a disaster.

[0190] According to another embodiment, when the control server (100) or communication manager (150) receives a message from a vehicle that has transmitted a detour route stating that evacuation using the detour route has not been completed, or receives a message requesting a new detour route, it may request road and terrain analysis and disaster area information from the satellite image analysis server (230).

[0191] The satellite image analysis server (230) that receives this can request the latest image of the disaster area from the satellite image provision server (220) (S312), receive the latest image of the disaster area from the satellite image provision server (220) (S314), and analyze the roads and terrain based on the received latest image of the disaster area to transmit the disaster area detection and analysis results to the control server (100).

[0192] According to one embodiment, the satellite image analysis server (230) can detect a damaged road by comparing the received latest image with the previous image to detect a change.

[0193] In accordance with other implementations, the satellite image analysis server (230) can recognize roads from the latest images and compare the recognized roads with a map to identify unconnected roads as damaged roads.

[0194] In operation S320, the control server (100) or the road data manager (120) can receive the results of analyzing the road and terrain and the disaster area information transmitted by the satellite image analysis server (230).

[0195] According to another embodiment, the control server (100) or the road data manager (120) may directly request the latest images of the disaster area from the satellite image providing server (220). The control server (100) or the road data manager (120) may receive the latest images of the disaster area from the satellite image providing server (220) and request road and terrain analysis and disaster area information while transmitting the latest images to the satellite image analysis server (230). Additionally, the control server (100) or the road data manager (120) may request road and terrain analysis and disaster area information while transmitting the images to the satellite image analysis server (230) after performing image processing to reduce noise on the received latest images and to adjust the orientation of each image and the area included in each image. The satellite image analysis server (230) can analyze roads and terrain based on the latest received images and transmit the disaster area detection and analysis results to the control server (100) or the road data manager (120).

[0196] According to one embodiment, the control server (100) or the road data manager (120) may update map information based on the received disaster area detection and analysis results. That is, the control server (100) may update map information based on information about damaged roads and display information about damaged roads on the map.

[0197] In operation S330, the control server (100) or the detour route manager (140) can identify vehicles within the disaster area. According to one embodiment, the control server (100) or the vehicle status manager (130) periodically acquires the location of a vehicle (300) and stores it in a database, and the detour route manager (140) can identify vehicles when the location of the vehicle (300) stored in the database is within the disaster area. Even in the event of a disaster, the control server (100) or the vehicle status manager (130) can periodically acquire the location of the vehicle (300). According to one embodiment, the control server (100) or the vehicle status manager (130) can periodically acquire the location of the vehicle through NB-NTN type satellite communication (400).

[0198] In operation S340, the control server (100) or the detour route manager (140) can determine whether there is a vehicle newly entering the disaster area, excluding vehicles that were already in the disaster area, among the vehicles in the confirmed disaster area.

[0199] In case there is a vehicle that has newly entered the disaster area in operation S340, the control server (100) or the communication manager (150) may, in operation S350, transmit a message to the route guidance device (330) of the vehicle (300) notifying of the occurrence of the disaster and requesting consent to provide a detour route. According to one embodiment, the message may be transmitted using NB-NTN satellite communication (400). According to another embodiment, if the route guidance device (330) is also connected to a terrestrial network, the message may be additionally transmitted using the terrestrial network.

[0200] In operation S360, the route guidance device (330) may accept the provision of a detour route, provide current location and destination information, and transmit a message requesting the transmission of the detour route to the control server (100) via satellite communication (400). In operation S360, the control server (100) or the communication manager (150) may receive, via satellite communication (400), a message requesting the provision of a detour route, providing current location and destination information, and transmitting the detour route from the route guidance device (330) newly installed in the vehicle (300).

[0201] In operation S370, the control server (100) or the detour route manager (140) may request the detour route provider server (240) to create a detour route for all vehicles in the disaster area, including vehicles newly recognized as existing in the disaster area. According to one embodiment, the control server (100) or the detour route manager (140) may request the creation of a detour route by providing the detour route provider server (240) with current location and destination information received from the route guidance device (330) of a vehicle (300) newly recognized as existing in the disaster area. Additionally, the control server (100) or the detour route manager (140) may request the creation of a detour route for vehicles existing in the disaster area by providing the detour route provider server (240) with current location information and existing destination information that were periodically received and stored in a database.

[0202] The detour route providing server (240) can generate a detour route for each vehicle that has received current location and destination information.

[0203] In operation S380, the control server (100) or the bypass path manager (140) can receive a bypass path generated from the bypass path providing server (240).

[0204] In operation S390, the control server (100) or the communication manager (150) can transmit the detour route for each vehicle received from the detour route providing server (240) to the route guidance device (300) of each vehicle via satellite communication (400).

[0205] Finally, the route guidance device (300) can provide the received detour route information to the navigation (320) so that the navigation (320) can display the detour route on the display (310).

[0206] According to one embodiment, the driver can drive along the detour route displayed on the display (310) to exit the disaster area and complete evacuation. However, according to another embodiment, if the driver fails to exit the disaster area even while driving along the detour route displayed on the display (310), the route guidance device (300) may request the control server (100) to generate a new detour route.

[0207] FIG. 5 is a flowchart illustrating a method for a vehicle to activate and provide a detour route to a vehicle according to one embodiment of the present document.

[0208] Referring to FIG. 5, in operation S410, the route guidance device (330) can receive disaster information from the national disaster communication network (210). According to one embodiment, the national disaster communication network (210) recognizes that a disaster has occurred (S405) and transmits the disaster information to the route guidance device (330), thereby allowing the route guidance device (330) to receive the disaster information. For example, if the vehicle (300) is outside the disaster area, the route guidance device (330) of the vehicle (300) cannot receive information about the disaster area from the control server (100) and can receive disaster information from the national disaster communication network (210). Then, the route guidance device (330) can decide whether to request a detour route from the control server (100). For example, the route guidance device (330) may request a detour route from the control server (100) if, based on the received disaster information, it appears that the route the vehicle (330) is traveling on passes through the area where the disaster occurred. According to another embodiment, the route guidance device (330) may request a detour route unconditionally if it recognizes the fact that a disaster has occurred.

[0209] When the route guidance device (330) decides to request a detour route, it may provide current location and destination information in operation S420 and transmit a message requesting the transmission of a detour route to the control server (100) via satellite communication (400). According to one embodiment, the route guidance device (330) may additionally transmit a message accepting the provision of a detour route.

[0210] In operation S430, the control server (100) or the road data manager (120) may request road and terrain analysis and disaster area information related to the disaster from the satellite image analysis server (230). Upon receiving this, the satellite image analysis server (230) may request the latest images of the disaster area from the satellite image provision server (220) (S432), receive the latest images of the disaster area from the satellite image provision server (220) (S434), and analyze the roads and terrain based on the received latest images of the disaster area to transmit the disaster area detection and analysis results to the control server (100).

[0211] According to one embodiment, the satellite image analysis server (230) can detect a damaged road by comparing the received latest image with the previous image to detect a change.

[0212] In accordance with other implementations, the satellite image analysis server (230) can recognize roads from the latest images and compare the recognized roads with a map to identify unconnected roads as damaged roads.

[0213] In operation S440, the control server (100) or the road data manager (120) can receive the road and terrain analysis results and the disaster area detection results transmitted by the satellite image analysis server (230).

[0214] According to another embodiment, the control server (100) or the road data manager (120) may directly request the latest images of the disaster area from the satellite image providing server (220). The control server (100) may receive the latest images of the disaster area from the satellite image providing server (220) and request road and terrain analysis and disaster area information while transmitting the latest images to the satellite image analysis server (230). Additionally, the control server (100) or the road data manager (120) may request road and terrain analysis and disaster area information while transmitting to the satellite image analysis server (230) images after performing image processing to reduce noise on the received latest images and to adjust the orientation of each image and the area included in each image, for example, general RGB image data and / or infrared and specific band filtered image data. The satellite image analysis server (230) can analyze roads and terrain based on the latest received images and transmit the disaster area detection and analysis results to the control server (100) or the road data manager (120).

[0215] According to one embodiment, the control server (100) or the road data manager (120) may update map information based on the received disaster area detection and analysis results. That is, the control server (100) or the road data manager (120) may update map information based on information about damaged roads and display information about damaged roads on the map.

[0216] In operation S450, the control server (100) or the detour route manager (140) may request the detour route providing server (240) to create a detour route for a vehicle that has requested a detour route. According to one embodiment, the control server (100) or the detour route manager (140) may request the creation of a detour route by providing the current location and destination information received from the route guidance device (330) of the vehicle (300) to the detour route providing server (240).

[0217] The detour route providing server (240) can generate a detour route for a vehicle that has received current location and destination information based on the vehicle's current location and destination information.

[0218] In operation S460, the control server (100) or the bypass path manager (140) can receive a bypass path generated from the bypass path providing server (240).

[0219] In operation S470, the control server (100) or the communication manager (150) can transmit the bypass route received from the bypass route providing server (240) to the route guidance device (300) via satellite communication (400).

[0220] Finally, the route guidance device (300) can provide the received detour route information to the navigation (320) so that the navigation (320) can display the detour route on the display (310).

[0221] According to one embodiment, the driver can drive along the detour route displayed on the display (310) to exit the disaster area and complete evacuation. However, according to another embodiment, if the driver fails to exit the disaster area even while driving along the detour route displayed on the display (310), the route guidance device (300) may request the control server (100) to generate a new detour route.

[0222] In one embodiment of FIG. 5, when a disaster occurs, the route guidance device (330) inside the vehicle (330) first requests a detour route from the control server (100). In one embodiment of FIG. 5, a detour route can be requested according to the flowchart of FIG. 5 not only when a disaster occurs but also during normal times. According to one embodiment, if the route guidance device (330) is not connected to the control server (100) or other navigation-related servers through a ground network, a detour route can be set through the flowchart of FIG. 5. Alternatively, even if the vehicle's navigation system is malfunctioning, the route guidance device (330) can set a detour route through the flowchart of FIG. 5.

[0223] Figures 3 to 5 described above provide a flowchart of operations for providing a detour route to a vehicle (300) in the event of a disaster. Below, the specific operations performed by the control server (100) or the interlocking system (200) in each operation of the flowchart will be explained in detail.

[0224] The control server (100) can detect and analyze accident areas or disaster areas based on image information received by the optical satellite (300). According to one embodiment, the control server (100) can detect and analyze accidents and disasters by linking with the satellite image analysis server (230) and using an artificial intelligence-based disaster detection and analysis algorithm.

[0225] FIG. 6 is a diagram illustrating a method of providing a detour route to a vehicle in the event of a disaster according to various embodiments of the present invention.

[0226] Referring to FIG. 6, the control server (100) and the linkage system (200) linked with the control server (100) can simultaneously perform path search and generation for multiple vehicles, not just a single vehicle.

[0227] Referring to FIG. 6, in operation S610, the control server (100) can recognize that a disaster has occurred by the disaster monitoring manager (110) receiving a disaster occurrence message or disaster information from the national disaster communication network (210). The control server (100) can also recognize specific disaster situations and disaster areas through wide-angle low-resolution satellite images acquired from an optical satellite by linking with the linkage system (200).

[0228] In operation S620, the control server (100) and the interlocking system (200) can be interconnected to analyze the accident area or disaster area using high-resolution satellite imagery of the accident or disaster area obtained from an optical satellite.

[0229] In operation S630, the control server (100) and the linkage system (200) can link to recognize and convert into data objects and vehicles around the disaster area through disaster area analysis.

[0230] In operation S640, the control server (100) and the linkage system (200) can link to generate a route of surrounding vehicles that are recognized and converted into data based on disaster area analysis. The route generated by the linkage of the control server (100) and the linkage system (200) may be a new route or a detour route that is different from the existing route of surrounding vehicles.

[0231] According to one embodiment, the control server (100) and the linkage system (200) can recognize a disaster area using artificial intelligence.

[0232] FIG. 7 is a diagram illustrating a method for a control server and an interlocking system according to various embodiments of the present invention to derive a disaster area using artificial intelligence.

[0233] Referring to FIG. 7, in operation S710, the satellite image analysis server (230) of the control server (100) or the linkage system (200) can preprocess the satellite image to generate general RGB image data and infrared and specific band filtered image data.

[0234] In operation S720, the satellite image analysis server (230) of the control server (100) or the linked system (200) can set up an artificial intelligence-based disaster detection model and train the set disaster detection model by inputting general RGB image data generated by preprocessing satellite images in operation S710 and infrared and specific band filtered image data into the set disaster detection model.

[0235] In operation S730, the satellite image analysis server (230) of the control server (100) or the linked system (200) can update the disaster detection model by adding data or reflecting errors in the disaster area output from the disaster detection model.

[0236] In operation S740, the satellite image analysis server (230) of the control server (100) or the linked system (200) can derive a disaster area using a learned disaster detection model.

[0237] As described above, the control server (100) and the linkage system (200) can link to derive a disaster area and create a new route for multiple vehicles around the disaster area and provide it to each vehicle (300).

[0238] In this document, if the vehicle (10) fails to establish a communication connection with the control server (100) via the terrestrial network (TN), it can establish a communication connection with the control server (100) using the narrowband non-terrestrial network (NB-NTN) or satellite communication (400) to receive a changed driving route or detour route. Here, the narrowband non-terrestrial network (NB-NTN) is a satellite communication network via a communication satellite, and the data transmission speed is 256 Kbps or less and may be significantly lower than that of the terrestrial network (TN).

[0239] Therefore, according to one embodiment, when the control server (100) transmits a driving path to a vehicle (30) via a narrowband non-ground network (NB-NTN), it can transmit it as text rather than video. Additionally, the control server (100) can further reduce the size of the data by encoding frequently used terms in the text-based driving path data and transmit it to the vehicle (300). For example, 'left turn' can be encoded as '0x01' and 'right turn' can be encoded as '0x02'. Here, '0x' is a symbol indicating that it is a hexadecimal number, and '0x01' and '0x02' can be 8-bit data. That is, 6 bytes can be used to represent 'left turn' as text, but by encoding it, only 1 byte can be used to represent 'left turn'. To distinguish it from data representing uncoded characters, the 1-byte code assigned to each term may be a code that has not been used to represent existing characters. Alternatively, according to another embodiment, to distinguish it from uncoded data, an identifier indicating that it is coded may be additionally added to display 'left turn'. For example, '0xFF01' may be used to display 'left turn'. When using such an identifier, more terms can be coded, and the size of the character-type driving path data can be further reduced.

[0240] The coded terms may be stored in a lookup table in the vehicle (300) and the control server (100). The control server (100) and the vehicle (300) can generate character data by converting the terms into codes using the lookup table, and the vehicle (300) and the control server (100) can restore the character data by obtaining the terms corresponding to the codes using the lookup table. Accordingly, the control server (100) and the vehicle (300) can convert the terms into codes by having an encoder, and the vehicle (300) and the control server (100) can convert the codes into terms by having a decoder.

[0241] Although it has been described that character-based driving path data including term encoding is used when the control server (100) and the vehicle (300) or the route guidance device (330) equipped in the vehicle (300) communicate using a narrowband non-terrestrial network (NB-NTN), character-based driving path data including term encoding can also be used when the control server (100) and the vehicle (10) communicate through a terrestrial network (TN).

[0242] FIG. 8 is a diagram illustrating the configuration of a route guidance device equipped in a vehicle in relation to various embodiments of the present invention.

[0243] Referring to FIG. 8, the route guidance device (330) may be equipped with a first terminal (810) that communicates with a terrestrial network (TN), a second terminal (820) that communicates with a narrowband non-terrestrial network, and a control device (830) that manages the driving path of the vehicle. Additionally, the vehicle (10) may further include an encoder / decoder (840) that obtains text-format data by encoding text-format data or decoding encoded data according to a method that includes data coded in text format and compressed coded data for specific text terms.

[0244] The control device (830) performs the operation of the route guidance device (330) shown in FIGS. 2 to 5, and is initially connected to the control server (100) via the terrestrial network (TN), and if communication via the terrestrial network (TN) fails, it is connected to the control server (100) via the narrowband-non-terrestrial network (NB-NTN) to obtain a driving path for moving the vehicle (300) to a destination.

[0245] The encoder / decoder (840) includes a lookup table that stores a specific character term and compressed coding data corresponding to the specific character term, and can encode data to be transmitted through a narrowband-non-terrestrial network by referring to the lookup table, and can decode data in character format by obtaining a specific character term corresponding to the compressed coding data based on the lookup table for the encoded data received through the narrowband-non-terrestrial network.

[0246] The configuration shown in FIG. 8 illustrates only the configuration related to the operation presented in this document, and the route guidance device may include other configurations for linking with navigation in addition to that shown in FIG. 8.

[0247]

[0248] This document has been described with reference to embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of this publication should be determined by the technical concept of the appended claims.

Claims

1. A first terminal that communicates with a terrestrial network; A second terminal that communicates with a narrowband non-terrestrial network; It includes a control device that guides the driving path of the vehicle, and The above control device is, When operating normally, the first terminal is used to communicate with the control server to transmit location information of the vehicle, and If communication with the terrestrial network through the first terminal fails, a communication connection is established with the control server using the narrowband non-terrestrial network through the second terminal, and Receive a bypass route from the control server through the second terminal connected to the above narrowband non-terrestrial network, and A route guidance device that provides the above detour route to the navigation system of the above vehicle.

2. In Paragraph 1, It further includes a decoder for decoding data received through the above-mentioned narrowband non-terrestrial network, and A route guidance device, wherein the bypass route transmitted through the above-mentioned narrowband non-terrestrial network is data coded in text format, provided that the data is compressed coded for specific character terms.

3. In Paragraph 2, The above decoder is, It includes a lookup table that stores the above-mentioned specific character term and the compressed coding data corresponding to the above-mentioned specific character term. A route guidance device that obtains a specific character term corresponding to compressed coding data included in the bypass route based on the above lookup table, and obtains the bypass route in character format.

4. A control server that provides an alternative route in the event of a disaster by communicating using a route guidance device equipped in a vehicle and a narrowband non-terrestrial network, A disaster monitoring manager that monitors disaster situations in conjunction with the national disaster communication network; A road data manager that identifies road conditions, determines disaster areas, and detects damaged roads where vehicle driving is impossible by linking with a satellite image provision server and a satellite image analysis server; A vehicle condition manager that monitors the condition of a vehicle; A detour route manager that generates a detour route for the above vehicle; and A control server including a communication manager that performs communication with the above-mentioned route guidance device.

5. In Paragraph 4, The above road data manager, A control server that determines a disaster area based on wide-angle low-resolution satellite imagery acquired from an optical satellite in conjunction with the satellite imagery providing server and the satellite imagery analysis server, and obtains damaged road information by analyzing the disaster area through high-resolution satellite imagery of the disaster area acquired from the optical satellite.

6. In Paragraph 5, The above road data manager, A control server that obtains damaged road information by linking with the satellite image providing server and the satellite image analysis server to compare the latest high-resolution satellite image with the previous high-resolution satellite image and detect changes.

7. In Paragraph 5, The above road data manager, A control server that recognizes roads from the high-resolution satellite imagery by linking with the satellite imagery providing server and the satellite imagery analysis server, and obtains damaged road information by comparing the recognized roads with a map to discover unconnected roads.

8. In Paragraph 5, The above road data manager, By linking with the satellite image providing server and the satellite image analysis server, wide-angle low-resolution satellite images acquired from the optical satellite are preprocessed to generate general RGB image data, infrared filtered image data, and specific band filtered image data. A disaster detection model is obtained by training an artificial intelligence model using the above general RGB image data, infrared filtered image data, and specific band filtered image data as input, and The disaster detection model is improved through additional learning that reflects the output error of the above disaster detection model, and A control server that determines disaster areas based on a learned disaster detection model.

9. In Paragraph 5, The above bypass route manager is, A control server that generates a detour route based on the current location and destination of the vehicle in conjunction with the detour route providing server.

10. In Paragraph 9, The above road data manager, Map information is updated based on damaged road information obtained by analyzing the above disaster area, and The above bypass route manager is, A control server that generates a detour route based on updated map information, the current location and destination of the vehicle, in conjunction with the detour route providing server.

11. In Paragraph 4, The above communication manager is, A control server that transmits the bypass route transmitted through the above-mentioned narrowband non-terrestrial network as data coded in text format, but uses compressed coded data for specific character terms.

12. In Paragraph 11, The above communication manager is, It includes a lookup table that stores the above-mentioned specific character term and the compressed coding data corresponding to the above-mentioned specific character term. Based on the above lookup table, compressed coding data for a specific character term included in the bypass path transmitted through the above narrowband non-terrestrial network is obtained, and A control server that allows the compressed coding data to be coded instead of the character format coding data for the above specific character terms.

13. A method for providing a detour route to a vehicle of a control server that provides a detour route in the event of a disaster by communicating using a route guidance device equipped in the vehicle and a narrowband non-terrestrial network, wherein Operation of receiving disaster information from the national disaster communication network; Action to acquire information on disaster areas and damaged roads; Action to check vehicles within a disaster area; An action of notifying vehicles within the aforementioned disaster area of ​​the occurrence of a disaster and requesting consent to provide an alternative route; An operation to agree to provide a detour route from a vehicle within the aforementioned disaster area, receive the current location and destination, and receive a request to transmit the detour route; The operation of generating a detour route for vehicles within the above-mentioned disaster area; and A method comprising the operation of transmitting the generated detour route to a vehicle within the disaster area.

14. In Paragraph 13, The operation of acquiring the above disaster area and damaged road information is, Operation of determining a disaster area based on wide-angle low-resolution satellite image acquired from an optical satellite in conjunction with a satellite image providing server and the satellite image analysis server; and A method further comprising the operation of obtaining damaged road information by analyzing the disaster area through high-resolution satellite imagery of the disaster area obtained from the optical satellite.

15. In Paragraph 14, The operation of acquiring the above disaster area and damaged road information is, A method further comprising the operation of obtaining damaged road information by comparing the latest high-resolution satellite image with the previous high-resolution satellite image and detecting changes in conjunction with the satellite image providing server and the satellite image analysis server.

16. In Paragraph 14, The operation of acquiring the above disaster area and damaged road information is, A method further comprising the operation of recognizing a road from the high-resolution satellite image by linking with the satellite image providing server and the satellite image analysis server, and finding a non-connected road by comparing the recognized road with a map to obtain damaged road information.

17. In Paragraph 14, The operation of acquiring the above disaster area and damaged road information is, An operation to preprocess wide-angle low-resolution satellite images acquired from the optical satellite in conjunction with the satellite image providing server and the satellite image analysis server to generate general RGB image data, infrared filtered image data, and specific band filtered image data; An operation to acquire a disaster detection model by training an artificial intelligence model using the above general RGB image data, infrared filtered image data, and specific band filtered image data as inputs; An operation to improve a disaster detection model through additional learning that reflects the output error of the above disaster detection model; and A method further comprising an action of determining a disaster area based on a learned disaster detection model.

18. In Paragraph 13, The operation of generating a detour route for vehicles within the aforementioned disaster area is, A method comprising the operation of generating a detour route based on the current location and destination of a vehicle within the disaster area by linking with a detour route providing server.

19. In Paragraph 13, It further includes an operation to update map information based on damaged road information obtained by analyzing the above disaster area, and The operation of generating a detour route for vehicles within the aforementioned disaster area is, A method comprising the operation of generating a detour route based on updated map information, the current location of the vehicle, and the destination, in conjunction with a detour route providing server.

20. In Paragraph 13, The operation of transmitting the above detour route to a vehicle within the disaster area is, A method of transmitting the above-mentioned bypass path transmitted through a narrowband non-terrestrial network as data coded in text format, wherein compressed coded data is used for specific character terms.

21. In Paragraph 20, The operation of transmitting the bypass path transmitted through the above-mentioned narrowband non-terrestrial network as data coded in text format is, An operation of obtaining compressed coding data for a specific character term included in the bypass path transmitted through the narrowband non-terrestrial network based on a lookup table storing the specific character term and the compressed coding data corresponding to the specific character term; and A method comprising the operation of coding the above-mentioned specific character term with the above-mentioned compressed coding data instead of the character format coding data.

22. A computer program that provides a detour route to a vehicle according to any one of paragraphs 13 through 21 when recorded on a computer-readable storage medium and executed on a computer or server.

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