Route display method and device

Abstract

The invention relates to a route display method and device. The present invention relates to a method for detecting flicker or non-flicker of a steering lamp at an intersection different from a driving route, and displaying route information corresponding to the detected flicker or non-flicker of the steering lamp on a navigation system. According to one embodiment of the present invention, a route display method performed by a computing device may comprise the steps of: displaying a travel guide screen corresponding to a first intersection included in an existing route from a departure point to a destination; detecting flicker of a steering lamp in a direction different from the direction of the existing route at a position corresponding to the first intersection; in response to detecting the flicker of the turn light, information related to the change of the existing route is displayed on the driving guide screen.

Description

Technical Field

[0001] This invention relates to a route display method and apparatus. Specifically, it relates to a method for predicting a driver's intentions at an intersection and displaying information related to the effects of route changes on a navigation system. Background Technology

[0002] A navigation system is a system that helps drivers find the best route to their destination. It connects to the Global Positioning System (GPS) to determine the driver's current location and provides route guidance based on real-time traffic information and maps. Navigation systems provide information such as estimated arrival time, traffic congestion, accident and construction zones, and help drivers easily follow routes through voice guidance and visual maps. Navigation systems can be provided in various forms, such as smartphone apps or in-vehicle systems.

[0003] The navigation system can suggest alternative routes to the current guided route. Based on real-time traffic information, it can suggest alternative routes reflecting congestion, accidents, and road construction. The system can suggest alternative routes for purposes such as detours, saving time, and reducing distance, and can compare the estimated travel time and distance of the selected route and the alternative route to provide drivers with the best possible alternatives.

[0004] On the other hand, navigation systems suggest alternative routes when drivers directly input information. However, directly inputting information into the navigation system while driving can distract drivers from the road ahead, potentially leading to accidents. Therefore, a technology is needed that can automatically display alternative route information by recognizing the driver's driving intentions.

[0005] Existing technical documents

[0006] Patent documents

[0007] (Patent Document 0001) Korean Patent Publication No. 10-2007-009931 (Publication Date: 2007.10.10). Summary of the Invention

[0008] The technical problem that the invention aims to solve

[0009] One technical problem to be solved by some embodiments of the present invention is to provide a method for recognizing a driver’s intention to change routes and displaying route information that is an alternative to the existing route.

[0010] Another technical problem to be solved by some embodiments of the present invention is to provide a method for quickly suggesting a route after changing the existing route based on the operating status of the vehicle's turn signals, etc.

[0011] The technical problems to be solved by the present invention are not limited to those described above. Those skilled in the art will clearly understand other technical problems not mentioned in the following description.

[0012] Technical solutions for solving the problem

[0013] A route display method according to an embodiment of the present disclosure for solving the technical problem may include: a step of displaying a driving guidance screen corresponding to a first intersection included in an existing route from a starting point to a destination; a step of detecting the flashing of a turn signal in a direction different from the direction of the existing route at a location corresponding to the first intersection; and a step of displaying information related to the change of the existing route in response to detecting the flashing of the turn signal.

[0014] In one embodiment, the step of displaying information related to the change in the existing route may include: displaying information related to the change in the existing route before detecting a turn in the direction of the flashing turn signal and before executing a route update procedure due to the positional movement of the computing device caused by subsequent driving.

[0015] In one embodiment, the step of displaying information related to the change of the existing route on the driving guidance screen may include: calculating the distance between the first intersection and the location of the computing device; and displaying information related to the change of the existing route on the driving guidance screen in response to the distance being greater than or equal to a threshold.

[0016] In one embodiment, the step of displaying information related to the change of the existing route may include: calculating the time it takes for the computing device to reach the first intersection; and displaying information related to the change of the existing route on the driving guidance screen in response to the time being greater than or equal to a threshold.

[0017] In one embodiment, the step of displaying information related to the change of the existing route may include: measuring the flashing duration of the turn signal; and displaying information related to the change of the existing route on the driving guidance screen in response to the flashing duration being greater than or equal to a threshold.

[0018] In one embodiment, the step of displaying information related to the change in the existing route may include: measuring the number of times the turn signal flashes; and displaying information related to the change in the existing route on the driving guidance screen in response to the number of flashes being greater than or equal to a threshold.

[0019] In one embodiment, the step of displaying information related to the change in the existing route may include: measuring the speed of the computing device; and when it is detected that the speed of the computing device has changed due to the change in the existing route, displaying information related to the change in the existing route on the driving guidance screen.

[0020] In one embodiment, the method may further include: calculating the probability of the existing route changing to the changed route in response to detecting the turn signal flashing; and displaying information related to the changed route in response to the probability being greater than or equal to a predetermined threshold.

[0021] A route display method according to another embodiment of the present disclosure for solving this technical problem may include: the steps of displaying a driving guidance screen corresponding to a first intersection included in an existing route from a departure point to a destination, wherein the existing route includes a left or right turn at the first intersection; detecting that a turn signal is not flashing at a location corresponding to the first intersection; and, in response to detecting that the turn signal is not flashing, displaying information related to changes in the existing route on the driving guidance screen.

[0022] In one embodiment, the step of detecting that the turn signal is not flashing may include: determining that the turn signal is not flashing when the duration of continuous flashing of the turn signal is less than or equal to a predetermined threshold.

[0023] In one embodiment, the step of detecting that the turn signal is not flashing may include: determining that the turn signal is not flashing when the number of flashes of the turn signal is less than or equal to a predetermined threshold.

[0024] In one embodiment, the step of displaying information related to the change in the existing route may include: measuring the moving speed of the computing device; determining the amount of change in the measured moving speed; and displaying the information related to the change in the existing route when the determined amount of change is not within the range of a determined amount of change based on a left or right turn.

[0025] A route display method according to another embodiment of the present disclosure for solving this technical problem may include the steps of: displaying a driving guidance screen corresponding to a first intersection included in an existing route from the origin to the destination; detecting the flashing of a turn signal for lane changing at a location corresponding to the first intersection; and displaying information related to the change in the existing route caused by the lane change.

[0026] A route display device according to an embodiment of the present disclosure for solving the technical problem may include: a processor; and a memory storing a plurality of instructions that, when executed by the processor, cause the processor to perform the following operations: display a driving guidance screen corresponding to a first intersection included in an existing route from the origin to the destination; detect the flashing of a turn signal in a direction different from the direction of the existing route at a location corresponding to the first intersection; and, in response to detecting the flashing of the turn signal, display information related to the change in the existing route.

[0027] A route display device according to another embodiment of the present disclosure for solving this technical problem may include: a processor; and a memory storing a plurality of instructions that, when executed by the processor, cause the processor to perform the following operations: display a driving guidance screen corresponding to a first intersection included in an existing route from the origin to the destination, wherein the existing route includes a left or right turn at the first intersection; detect that a turn signal is not flashing at a location corresponding to the first intersection; and, in response to detecting that the turn signal is not flashing, display information related to changes in the existing route.

[0028] A route display device according to another embodiment of the present disclosure for solving this technical problem may include: a processor; and a memory storing a plurality of instructions that, when executed by the processor, cause the processor to perform the following operations: display a driving guidance screen corresponding to a first intersection included in an existing route from the origin to the destination; detect the flashing of a turn signal for lane changing at a location corresponding to the first intersection; and display information related to the change in the existing route caused by the lane change. Attached Figure Description

[0029] Figure 1 and Figure 2 This is a conceptual diagram illustrating the structure of a route display system according to an embodiment of the present invention.

[0030] Figure 3 This is a flowchart illustrating a route display method according to an embodiment of the present invention.

[0031] Figure 4 It is a schematic display Figure 3 A diagram illustrating the route display method and related information.

[0032] Figure 5 It is a schematic display Figure 3 A schematic diagram of the display screen of the navigation system in the route display method of the embodiment.

[0033] Figure 6 It is a display Figure 3A flowchart of a specific embodiment of step S300, which displays information about the effects of route changes.

[0034] Figure 7 It is a display Figure 3 A flowchart of another specific embodiment of step S300, which displays information about the effects of route changes.

[0035] Figure 8 It is a schematic display Figure 6 and Figure 7 A diagram illustrating the route display method and related information.

[0036] Figure 9 It is a display Figure 3 A flowchart of another specific embodiment of step S300, which displays information about the effects of route changes.

[0037] Figure 10 It is a display Figure 3 A flowchart of another specific embodiment of step S300, which displays information about the effects of route changes.

[0038] Figure 11 It is a display Figure 3 There is also a flowchart of a specific embodiment of step S300, which displays the effect information of route change.

[0039] Figure 12 This is a schematic diagram illustrating another flowchart of a route display method according to an embodiment of the present invention.

[0040] Figure 13 This is a schematic diagram illustrating another route display method according to an embodiment of the present invention.

[0041] Figure 14 It is a schematic display Figure 13 A schematic diagram illustrating the relevant information regarding the central route display method.

[0042] Figure 15 It is a display Figure 12 A flowchart of a specific embodiment of step S700 for detecting that the turn signal is not flashing.

[0043] Figure 16 It is a display Figure 12 Another flowchart of a specific embodiment of step S700 for detecting that the turn signal is not flashing.

[0044] Figure 17 It is a display Figure 12 Another flowchart of a specific embodiment of step S700 for detecting that the turn signal is not flashing.

[0045] Figure 18 This is a schematic diagram illustrating another route display method according to an embodiment of the present invention.

[0046] Figure 19 It is a schematic display Figure 18 A diagram illustrating the route display method and the navigation system's display screen.

[0047] Figure 20 This is a schematic diagram illustrating a route display method according to an embodiment of the present invention, showing a driving guidance screen.

[0048] Figure 21 This is a hardware configuration diagram showing a computing device 1000 for a route display method according to an embodiment of the present invention. Detailed Implementation

[0049] In this invention, a "navigation system" refers to a computing device that provides route guidance to vehicle drivers. This computing device may include a vehicle-built-in terminal, a terminal installed in the vehicle, or a smartphone, etc.

[0050] In this invention, "driving route" can refer to the current route the vehicle is taking from its origin to its destination. Furthermore, the driving route can also refer to the route currently being guided by the navigation system. The driving route can be changed from an existing route to a modified route.

[0051] In this invention, "existing route" can refer to the route taken by a vehicle from its origin to its destination before reaching the first intersection. The existing route can be guided by a navigation system. Furthermore, if the route changes, the navigation system may no longer provide guidance on the existing route.

[0052] In this invention, "modified route" can refer to the route taken by a vehicle from its origin to its destination after arriving at the first intersection. The modified route may have the same origin and destination as the existing route, but the route from the origin to the destination may be different from the existing route. When the driving route changes, the navigation system can guide the user along the modified route.

[0053] In this invention, an "intersection" can refer to a geographical location where a driver chooses to change their route from the existing route to a changed route. Vehicles can change their route from the existing route to the changed route by changing their direction of travel or lane at an intersection. Furthermore, an intersection can be an area within a preset distance from the point where the vehicle's route can be changed. For example, an intersection can be a turning section of road where vehicles can turn, or a road section within a preset distance from the entrance of an elevated road or underpass where vehicles can enter. It should be noted that the intersection in this invention is not limited to these examples.

[0054] In this invention, "route change effect information" can refer to information related to changing the driving route from the existing route to the changed route. For example, the degree of change in arrival time, the degree of change in driving distance, and the display of the expected route on the map due to the change from the existing route to the changed route can all be considered as route change effect information.

[0055] In this invention, "turn signal flashing" can refer to the state where the turn signal is on and automatically cycles between on and off. If the turn signal is on once and then off once, this can be considered as one flash. Furthermore, the duration of the turn signal flashing can refer to the time from the first activation to the final deactivation. Additionally, "turn signal not flashing" in this invention can refer to the state where the turn signal remains off.

[0056] In this invention, "driving guidance screen" can refer to the display screen of a navigation system that shows the map location of the guided driving route and information about the route (e.g., driving distance, arrival time at the destination, etc.). For a specific example, such as... Figure 5 As shown, the driving guidance screen can display a map 241a of the driving route and driving information 242a related to the driving route.

[0057] Several embodiments will be described in detail below with reference to the accompanying drawings.

[0058] Figure 1 and Figure 2 This is a conceptual diagram showing the overall structure of a route display system according to an embodiment of the present invention.

[0059] refer to Figure 1 The route display system in this embodiment is a system installed in the navigation system 200. The navigation system 200 may include at least one of the following: route guidance unit 210, position detection unit 220, turn signal detection unit 230, and display unit 240.

[0060] refer to Figure 2In this embodiment, the route display system is a system installed in the navigation system 200 and the server 300, which can communicate via the network 400. The navigation system 200 may include at least one of a turn signal detection unit 230 and a display unit 240. Furthermore, the server 300 may include at least one of a route guidance unit 210 and a location detection unit 220. Additionally, the network 400 can be implemented as any type of wired / wireless network, such as a Local Area Network (LAN), a Wide Area Network (WAN), a mobile radio communication network, or a Wireless Broadband Internet (Wibro).

[0061] The following will explain Figure 1 and Figure 2 The specific components of the route display system according to some embodiments of the present invention are shown.

[0062] The route guidance unit 210 can generate an existing route after receiving the driver's input of the origin and destination, and can guide the driver to drive along the existing route. Furthermore, if it detects that the direction of the turn signal flashing is different from the direction of the existing route, the route guidance unit 210 can generate a modified route. In addition, the route guidance unit 210 can also generate information about the change of the driving route from the existing route to the modified route (hereinafter referred to as "route change effect information"). For example, if the existing route of the vehicle equipped with the navigation system is a straight route, and the driver flashes the vehicle's turn signal, the modified route of the vehicle is a turning route, and the route guidance unit 210 can generate route change effect information (e.g., map indication of the turning route, arrival time at the destination when the turning route is selected, vehicle travel distance when the turning route is selected, etc.). Furthermore, when the position of the vehicle equipped with the navigation system 200 changes, the route guidance unit 210 can change the driving route from the existing route to the modified route.

[0063] On the other hand, if it is detected that the turn signal of the vehicle equipped with the navigation system is not flashing and it deviates from its existing route, the route guidance unit 210 can generate a modified route and generate route change effect information. For example, if the existing route is a turning route and the turn signal is not flashing, the route guidance unit 210 can generate a modified route (straight route), and the route guidance unit 210 can generate route change effect information (e.g., map indication of the straight route, arrival time of the destination when the straight route is selected, and vehicle travel distance when the straight route is selected).

[0064] It should be noted that the route guidance unit 210 performs its calculations before detecting that the position of the vehicle equipped with the navigation system has moved along the changed route, and quickly after the turn signal of the vehicle equipped with the navigation system is turned on.

[0065] The position detection unit 220 can detect the current position of the vehicle equipped with the navigation system 200. In addition, when the position detection unit 220 detects that the turn signal of the vehicle equipped with the navigation system 200 is flashing, it can determine whether the vehicle equipped with the navigation system 200 is within a preset distance from the intersection.

[0066] The turn signal detection unit 230 can detect whether the turn signals of a vehicle equipped with the navigation system 200 are flashing. In addition, the turn signal detection unit 230 can acquire information related to whether the vehicle's turn signals are flashing (e.g., the flashing direction of the turn signals, the flashing duration of the turn signals, the number of flashes of the turn signals, the vehicle speed when the turn signals are flashing, etc.).

[0067] Display unit 240 can display a driving guidance screen corresponding to intersections included in the existing route of the vehicle equipped with navigation system 200 from its origin to its destination. Furthermore, display unit 240 can display information about changes to the existing route on the driving guidance screen in response to detecting a turn signal flashing on the vehicle equipped with navigation system 200. For example, if the existing route is a straight route and the driver flashes the turn signal within a preset distance from the intersection, information about the changed route (i.e., a right turn) (e.g., arrival time, travel distance, etc.) can be displayed on navigation system 200 in response to detecting the turn signal flashing.

[0068] Referenced Figure 1 and Figure 2 The overall structure of a route display system according to an embodiment of the present invention has been described. The following will be explained by... Figure 1 The route display system comprised of the navigation system 200 shown is used to illustrate a route display method according to some embodiments of the present invention. However, this assumption is for ease of explanation, and the subject matter of the route display method according to some embodiments of the present invention is not limited to... Figure 1 The route display system shown. It should be noted that the route display method according to some embodiments of the present invention can be executed by at least one computing device, including... Figure 2 The route display system shown.

[0069] The following will refer to Figures 3 to 5 Detailed description of embodiments related to the route display method using flashing turn signals.

[0070] For reference, this route display method illustrates the steps and operations of the navigation system 200. Therefore, in the following description, if the subject of a particular step / operation is omitted, it can be understood that the step / operation is performed by the navigation system 200.

[0071] Figure 3 This is a flowchart schematically illustrating a route display method according to an embodiment of the present invention. Figure 4 and Figure 5 It is a schematic display Figure 3 A diagram illustrating the relevant situation.

[0072] refer to Figure 3 The navigation system 200 can display driving guidance screens (S100) corresponding to the intersections included in the driving route from the origin to the destination. Here, the driving route refers to the existing route. For example, ... Figure 5 As shown, the display unit 240 of the navigation system 200 can display a map 241a and driving information 242a (i.e., estimated driving distance and arrival time) as a driving guidance screen. The map 241a shows the vehicle's position on the map and the route to the destination (hereinafter referred to as "existing route").

[0073] Next, the navigation system 200 can detect the flashing of turn signals at the corresponding location at the intersection, which are in a different direction than the driving route (existing route) (S200).

[0074] To give a specific example, such as Figure 4 As shown, the driver of vehicle 100 equipped with navigation system 200 can flash right turn signal 110 to turn right at intersection 140. Vehicle 100's current route is a straight route R11, and navigation system 200 is guiding the driver along this route. Before leaving the current route R11, the driver can flash right turn signal 110 to obtain information about the changed right turn route R12. Navigation system 200 can confirm that the current location's distance from intersection 140 is within a preset range. Furthermore, the turn signal detection unit 230 of navigation system 200 can compare the direction along the current route (straight) with the direction of the flashing turn signal (right turn), and detect turn signal flashing directions different from the current route.

[0075] Next, in response to detecting a flashing turn signal, the navigation system 200 can display information related to the change of the driving route from the existing route to the changed route (hereinafter referred to as "route change effect information") (S300). This route change effect information can be displayed as a driving guidance screen on the navigation system 200's display screen. Furthermore, the display of the route change effect information can also include conveying the route change effect information to the driver via voice. It should be noted that the display of the route change effect information includes all types of displays recognizable by the driver of the vehicle equipped with the navigation system 200.

[0076] To give a specific example, such as Figure 5 As shown, the display unit 240 of the navigation system 200 can display route change effect information, that is, simultaneously display the map 241b of the existing route and the changed route, the driving information 242a based on the existing route, and the degree of change in driving distance and the degree of change in arrival time 243, as a driving guidance screen.

[0077] On the other hand, step S300 of displaying route change effect information may include the following steps: displaying route change effect information before the direction of the flashing turn signal is detected to be turning and before the route update procedure is executed due to the movement of the vehicle equipped with navigation system 200 caused by subsequent driving.

[0078] To give a specific example, such as Figure 4 As shown, when vehicle 100 reaches location 130 after turning right along right-turn route R12, navigation system 200 can update the route and display it to the driver. According to an embodiment of the present invention, the route display method can display route change effect information at location 120 before the route update, i.e., before the right turn.

[0079] This route display method allows the driver of vehicle 100 to quickly view relevant information about the changed route before the driving route changes from the existing route to the changed route. Furthermore, the driver of vehicle 100 can obtain relevant information about the changed route without manually entering the information into the navigation system 200. Because the driver does not need to manually enter information, road conditions can be continuously monitored, thereby avoiding accidents that may occur due to driver inattention, or easily responding to accidents that do happen.

[0080] On the other hand, in some cases, the navigation system 200 may not be able to display route change effect information, or displaying such information may be meaningless. For example, if a vehicle equipped with the navigation system has already passed an intersection before displaying the route change effect information, the driver may no longer need that information. Therefore, to conserve the computing resources of the navigation system 200, it is necessary to determine whether displaying route change effect information is effective. The following will refer to... Figures 6 to 8Detailed instructions on the steps to display information about the effects of route changes.

[0081] Figure 6 and Figure 7 This is a flowchart showing a specific example of step S300 according to an embodiment of the present invention. Figure 8 It is a display Figure 7 A schematic diagram of the situation shown.

[0082] refer to Figure 6 The step S300 of displaying route change effect information may include the following steps: determining whether the distance from the current location of the vehicle equipped with the navigation system 200 to the intersection is greater than or equal to a threshold (S310); if the distance to the intersection is greater than or equal to the threshold, then displaying the route change effect information (S320). The distance threshold to the intersection can be calculated or pre-input based on factors such as vehicle speed, the distance between the vehicle and the intersection, the time required to display the route change effect information, and the time required for the driver to perceive and judge the route change effect information.

[0083] refer to Figure 7 The step S300 of displaying route change effect information may include the following steps: determining whether the time required for the vehicle equipped with the navigation system 200 to reach the intersection is greater than or equal to a threshold (S311); if the time required to reach the intersection is greater than or equal to the threshold, then displaying the route change effect information (S320). The time threshold for reaching the intersection can be calculated or pre-input based on factors such as vehicle speed, the distance between the vehicle 100 and the intersection, the time required to display the route change effect information, and the time required for the driver of the vehicle 100 to perceive and judge the route change effect information. For example, the time threshold for reaching the intersection can be the sum of the time required to display the route change effect information and the time required for the driver to perceive and judge the route change effect information.

[0084] To give a specific example, such as Figure 8As shown, it can be assumed that vehicles 100a and 100b travel at a speed of 70 kph, the time required to display route change information is 5 seconds, and the time required for the driver to perceive and judge the route change information is 2 seconds. Therefore, the time threshold for reaching the intersection can be set to 7 seconds, which is the sum of the time required to display route change information and the time required for the driver to perceive and judge the route change information. For vehicle 100a, which is 500 meters away from the intersection, the time to reach the intersection is approximately 25.7 seconds (500m ÷ 19.44m / s ≈ 25.7s). Since the time for vehicle 100a to reach the intersection (25.7 seconds) is greater than or equal to the threshold (7 seconds), the navigation system 200 of vehicle 100a can display the route change information. On the other hand, for vehicle 100b, which is 50 meters away from the intersection, the time to reach the intersection is 2.6 seconds (50m ÷ 16.67m / s ≈ 2.6s). Because the time it takes for vehicle 100b to reach the intersection (2.6 seconds) is less than the threshold (7 seconds), the vehicle's navigation system 200 will not display information about the route change.

[0085] This route display method displays route change information before the vehicle equipped with navigation system 200 arrives at the intersection if the distance to the intersection or the time required to reach the intersection is greater than or equal to a threshold. This allows the driver to view the information and select a route. Conversely, if the distance to the intersection or the time required to reach the intersection is less than the threshold, the route change information is displayed after the vehicle arrives at the intersection, preventing the driver from viewing it and selecting a route. Therefore, by displaying route change information only when the distance to the intersection is greater than or equal to a threshold, practical assistance can be provided to the driver in selecting a route.

[0086] The threshold for the distance to the intersection or the time required to reach the intersection is not limited to the examples above. Any standard can be used to calculate or set the threshold so that the driver of the vehicle equipped with the navigation system 200 can view the route change effect information and select the vehicle's route at the intersection before reaching the intersection.

[0087] On the other hand, a driver flashing their turn signal may not be intentionally changing their route. For example, the driver may have accidentally activated the turn signal device, or the driver may have visually assessed the situation regarding the changed route and intend not to change it again. Therefore, to conserve the navigation system's computing resources, it is necessary to determine whether the driver intentionally changed their route. The following will refer to... Figures 9 to 11 The steps for displaying route change effect information are explained in detail in step S300.

[0088] refer to Figure 9The step S300 of displaying route change effect information may include the following steps: measuring the flashing duration of the turn signals of the vehicle equipped with the navigation system 200 (S312); determining whether the flashing duration is greater than or equal to a threshold (S313); and if the flashing duration is greater than or equal to the threshold, displaying route change effect information (S320). The threshold for the flashing duration may be, for example, an appropriate turn signal operation time recommended by the traffic management authority. An appropriate turn signal operation time may refer to the time it takes for the driver to demonstrate an intention to change the vehicle's direction.

[0089] For a concrete example, a driver of a vehicle equipped with navigation system 200 might accidentally activate their turn signal for 2 seconds near a location identified as an intersection while driving on a regular road. Since the Road Traffic Authority recommends that turn signals be effectively activated for at least 3 seconds on regular roads, the threshold for the flashing duration of the turn signal might be 3 seconds. Therefore, because the flashing duration of the turn signal (2 seconds) is less than the threshold, navigation system 200 may not display route change effect information.

[0090] Furthermore, when driving on a regular road, the driver of vehicle 100 may intentionally activate the turn signal for 3 seconds near a location identified as an intersection. Since the flashing duration of the turn signal (3 seconds) is greater than or equal to the threshold (3 seconds), the navigation system 200 may display route change effect information.

[0091] refer to Figure 10 Step S300, which displays route change effect information, may include the following steps: measuring the number of times the turn signals of the vehicle equipped with the navigation system 200 flash (S314); determining whether the number of flashes is greater than or equal to a threshold (S315); and if the number of flashes is greater than or equal to the threshold, displaying route change effect information (S320). The threshold for the number of flashes may be, for example, the appropriate number of turn signal flashes recommended by the traffic management authority. The appropriate number of turn signal flashes may refer to the number of times the driver indicates an intention to change the vehicle's direction.

[0092] For a concrete example, a driver of a vehicle equipped with navigation system 200 might flash their turn signal twice near a location identified as an intersection to change their route, only to discover a traffic accident on the changed route and stop flashing the turn signal. Since the Road Traffic Authority recommends that turn signals flash 4-5 times on ordinary roads, the threshold for the number of flashes could be 4. Because the number of turn signal flashes (2 times) is less than the threshold (4 times), navigation system 200 may not display information about the route change.

[0093] In addition, when the driver of vehicle 100 is driving on a regular road, he may deliberately flash the turn signal 5 times near a location identified as an intersection to change the route. Since the number of times the turn signal flashes (5 times) is greater than or equal to the threshold (4 times), the navigation system 200 may display information about the route change effect.

[0094] See Figure 10 The step S300 of displaying route change effect information may include the following steps: measuring the speed of the vehicle equipped with the navigation system 200 (S316); determining whether the vehicle decelerates in order to turn (S317); and if the vehicle decelerates in order to turn, displaying route change effect information (S320).

[0095] To give a specific example, such as Figure 4 As shown, the existing route of vehicle 100 can be a straight route R11, while the changed route can be a right-turn route R12. If the driver of vehicle 100 flashes the right-turn signal 110, the navigation system 200 can measure the speed of vehicle 100. If the speed of vehicle 100 does not decrease or even increases, it cannot be determined that the driver intends to turn right; therefore, the navigation system 200 may not display route change effect information. Conversely, if the speed of vehicle 100 decreases, indicating that the driver intends to turn right, the navigation system 200 can display route change effect information.

[0096] By using this route display method, the navigation system 200 can more accurately reflect the driver's driving intentions. Furthermore, when the driver does not intend to change the route from the existing route to the changed route, the navigation system 200 can choose not to display information about the route change, thus saving computing resources.

[0097] At this point, for reference Figures 3 to 11 This describes a route display method that uses the detection of flashing turn signals at intersections to indicate the effect of route changes. Simultaneously, if the navigation system 200 determines that the vehicle 100's route will change from the current route to the changed route, the navigation system 200 can change the route guidance to the changed route. The following will refer to... Figure 12 This section details an implementation example of changing the guided route to the modified route, illustrating only the similarities with... Figure 2 The different parts of the process.

[0098] refer to Figure 12 If the navigation system 200 detects a turn signal flashing at the corresponding location at the intersection, indicating a different direction from the existing route, it can generate a revised route (S400). It should be noted that generating a revised route does not mean that the revised route will be immediately displayed on the navigation system 200's screen.

[0099] To give a specific example, such as Figure 4 As shown, if the driver of the vehicle 100 equipped with the navigation system 200 intentionally flashes the right turn signal 110 to indicate a right turn, the navigation system 200 can generate a modified route R12.

[0100] Next, the navigation system 200 can calculate the probability that the driving route of the vehicle equipped with the navigation system 200 will change from the existing route to the changed route (S500). The probability that the driving route will change from the existing route to the changed route can be calculated by considering the data related to route changes in the navigation system 200 (e.g., data on the number of times the vehicle changes route at the corresponding intersection, the degree of change in travel distance and arrival time when changing from the existing route to the changed route, the traffic conditions of the existing route and the changed route, the degree of congestion, whether there is road construction, whether there is an accident, and whether the driver has historical data on changing driving routes, etc.).

[0101] To give a specific example, such as Figure 4 As shown, the navigation system 200 can calculate the probability (hereinafter referred to as "change probability") of vehicle 100 changing to the changed route (right-turn route R12). The navigation system 200 can calculate the change probability based on statistical data showing whether vehicles with the same destination as vehicle 100 travel along the straight route R11 or the right-turn route R12. Furthermore, the navigation system 200 can also calculate the change probability based on statistical data showing whether vehicle 100 travels along the straight route R11 or the right-turn route R12 when moving from the corresponding intersection to the same destination. In addition, the navigation system 200 can also calculate the change probability based on data regarding the difference in arrival time, travel distance, and traffic congestion level between the straight route R11 and the right-turn route R12.

[0102] Next, if the probability that the vehicle's route will change from the existing route to the changed route is greater than or equal to a predetermined threshold, the navigation system 200 can display information based on the changed route before the vehicle travels along the changed route and the route is updated (S600).

[0103] To give a specific example, such as Figure 5 As shown, the display unit 240 of the navigation system 200 can display a map 241c, which only shows the vehicle's current location and the changed route to the destination. Furthermore, the display unit 240 can also display the estimated travel distance and arrival time of the changed route 242b, and can also display the degree of change in travel distance and arrival time 243.

[0104] This route display method allows drivers to quickly receive information about route changes (such as travel distance, arrival time, and driving instructions) by changing the initial route to the revised route. Furthermore, by changing the expected route before the driver changes it, gaps in the route guidance can be minimized.

[0105] The above combination Figures 3 to 12 This describes a method for displaying a changed route by recognizing the driver's intention when the driver of a vehicle equipped with navigation system 200 flashes their turn signal at an intersection. (Reference) Figures 13 to 17 This will describe a method for displaying a changed route by recognizing the driver's intent when the driver of a vehicle equipped with a navigation system 200 does not flash their turn signal at an intersection.

[0106] Figure 13 This is a flowchart illustrating a route display method according to an embodiment of the present invention. Figure 14 It is a schematic display Figure 13 A diagram illustrating the relevant situation.

[0107] refer to Figure 13 The navigation system 200 can display driving guidance screens (S100) corresponding to intersections included in the existing route from the origin to the destination. Here, the existing route refers to a route that includes left or right turns at intersections.

[0108] Next, the navigation system 200 can detect when the turn signal is not flashing at the location corresponding to the intersection (S700).

[0109] To give a specific example, such as Figure 14 As shown, if the existing route of the vehicle 100 equipped with navigation system 200 is a right-turn route R21, and the driver of the vehicle 100 does not flash turn signal 110, then navigation system 200 can detect situations where the turn signal is not flashing in a direction different from the right-turn route (straight ahead). Navigation system 200 can interpret the driver's intention to go straight based on the existing route R21 and the driver's failure to flash turn signal.

[0110] Next, in response to detecting that the turn signal is not flashing, the navigation system 200 can display information on the driving guidance screen about changing the existing route to the changed route (hereinafter referred to as route change effect information) (S800).

[0111] To give a specific example, such as Figure 5 As shown, the display unit 240 of the navigation system 200 can simultaneously display driving information 242a based on the existing route, a map 241b that simultaneously displays the existing route and the changed route (i.e., route change effect information), and the degree of change in driving distance and the degree of change in arrival time 243.

[0112] On the other hand, the step S800 of displaying route change effect information may include the following steps: displaying route change effect information before detecting a turn in the direction of the non-flashing turn signal and before executing a route update procedure due to the movement of the vehicle equipped with the navigation system 200 caused by subsequent driving.

[0113] To give a specific example, such as Figure 14 As shown, after the navigation system 200 detects that the driver of vehicle 100 does not flash the turn signal within a preset distance from the intersection, before vehicle 100 moves to position 150 along the changed route R22 and updates the driving route, the route change effect information can be displayed.

[0114] On the other hand, a driver's brief flashing of the turn signal may indicate that they do not intend to flash it. For example, after flashing the turn signal to turn along the existing route, the driver may immediately turn it off to change to the changed route. Therefore, to conserve the computing resources of the navigation system 200, it is necessary to determine whether the driver intends to change the route. The following will refer to... Figures 15 to 17 The steps for displaying route change effect information are explained in detail in step S800.

[0115] refer to Figure 15 The step of detecting that the turn signal is not flashing (S700) may include the following steps: measuring the flashing duration of the turn signal of the vehicle equipped with the navigation system 200 (S710); determining whether the flashing duration is less than a threshold (S711); and if the flashing duration is less than the threshold, displaying route change effect information (S720). The threshold for the flashing duration may be, for example, the appropriate turn signal operation time recommended by the Road Traffic Management Bureau.

[0116] In other words, the steps to detect that the turn signal is not flashing include the following: when the duration of continuous flashing of the turn signal is less than or equal to a predetermined threshold, it is determined that the turn signal is not flashing.

[0117] To give a specific example, such as Figure 14 As shown, if the driver of vehicle 100 flashes the turn signal for 2 seconds to turn right along the existing route R21, and then turns off the turn signal to go straight along the changed route R22, the driver's driving intention can be considered to be going straight. Since the Road Traffic Authority recommends a turn signal operation time of 3 seconds, the threshold can be 3 seconds. Therefore, since the flashing duration of the turn signal (2 seconds) is less than the threshold (3 seconds), the navigation system 200 can treat it as the turn signal not flashing and display the route change effect information based on the turn signal not flashing to the driver.

[0118] refer to Figure 16The step S700 of detecting that the turn signal is not flashing may include the following steps: measuring the number of flashes of the turn signal of the vehicle equipped with the navigation system 200 (S712); determining whether the number of flashes is less than a threshold (S713); and if the number of flashes is less than the threshold, displaying route change effect information (S720). The threshold for the number of flashes may be, for example, the appropriate number of flashes recommended by the Road Traffic Authority.

[0119] In other words, the steps to detect that the turn signal is not flashing include the following: when the number of flashes of the turn signal is less than or equal to a predetermined threshold, it is determined that the turn signal is not flashing.

[0120] To give a specific example, such as Figure 14 As shown, if the driver of vehicle 100 flashes the turn signal twice to turn right along the existing route R21, and then turns off the turn signal to go straight along the changed route, the driver's driving intention can be considered to be going straight. Since the Road Traffic Authority recommends that the appropriate number of turn signal flashes on ordinary roads be 4-5 times, the threshold for the number of turn signal flashes can be 4 times. Because the number of turn signal flashes (2 times) is less than the threshold (4 times), the navigation system 200 can treat it as the turn signal not flashing and display information about the route change effect based on the turn signal not flashing to the driver.

[0121] refer to Figure 17 The step S800 of displaying route change effect information may include: measuring the speed of the vehicle equipped with the navigation system 200 (S714); determining the amount of change in the measured speed, and determining whether the determined amount of change is within the range of the determined amount of change based on a left turn or a right turn (S715); when the determined amount of change is not within the range of the determined amount of change based on a left turn or a right turn, displaying route change effect information (S720).

[0122] To give a specific example, such as Figure 14 As shown, the existing route of vehicle 100 can be a right-turn route R21, while the changed route can be a straight route R22. If the driver of vehicle 100 does not flash the turn signal 110, the navigation system 200 can measure the speed of vehicle 100. If the speed measurement indicates that vehicle 100 has not slowed down for a right turn, it cannot be concluded that the driver intends to turn right along the existing route. Therefore, the navigation system 200 can display route change effect information. Conversely, if the speed of vehicle 100 decreases, the driver may not display route change effect information because the driver's intention is to turn right along the existing route.

[0123] By using this route display method, the navigation system 200 can interpret turn signal flashing for a duration or number of times less than a certain value as not flashing. Furthermore, the navigation system 200 can more accurately reflect the driver's driving intentions. Additionally, when the driver does not intend to change the route from the current route to the changed route, the navigation system 200 can choose not to display information about the route change, saving computing resources.

[0124] In one embodiment, when the turn signal is not flashing at an intersection, the same applies as when the turn signal is flashing. If it is determined that the vehicle's route will change from the existing route to the changed route, the navigation system 200 can change the route provided to the driver from the existing route to the changed route.

[0125] First, if the navigation system 200 detects that the turn signal is not flashing at the corresponding location at the intersection, it can generate a modified route.

[0126] To give a specific example, such as Figure 14 As shown, when the driver of vehicle 100 does not flash turn signal 110 and intends to go straight, the navigation system can generate a modified route R22 to go straight to the destination.

[0127] Next, the navigation system 200 can calculate the probability that the vehicle equipped with the navigation system 200 will travel along the generated modified route. If the probability that the vehicle will travel along the modified route is greater than or equal to a threshold, the navigation system 200 can display a driving guidance screen corresponding to the modified route before the vehicle travels along the modified route.

[0128] The above is for reference only. Figures 13 to 17 This describes a route display method for detecting when turn signals at intersections are not flashing and for displaying information about route changes. On the other hand, there may be situations where vehicle 100 does not turn at the intersection but its route changes. The following will refer to... Figure 18 and Figure 19 This describes a route display method based on an embodiment of the present invention for situations where the route is expected to change when the vehicle 100 does not turn at the intersection.

[0129] Figure 18 This is a flowchart illustrating a route display method according to an embodiment of the present invention. Figure 19 It is a schematic display Figure 18 A diagram illustrating the relevant situation.

[0130] refer to Figure 18The navigation system 200 can display driving guidance screens corresponding to intersections included in the existing route from the origin to the destination (S100). Next, the navigation system 200 can detect the flashing of turn signals for lane changing at the locations corresponding to the intersections (S210). Subsequently, the navigation system 200 can display information related to the change of driving route from the existing route to the changed route due to the lane change (S300).

[0131] To give a specific example, such as Figure 19 As shown, the driver of vehicle 100 is traveling on route R31, which is an existing route, to enter the elevated road. At an intersection where entry into the elevated road is optional, the driver of vehicle 100 can flash turn signal 120 to change lanes. Navigation system 200 can detect the flashing of turn signal 150 used for lane changing.

[0132] Next, as Figure 19 As shown, the navigation system 200 can generate possible changed routes when vehicle 100 changes lanes corresponding to the flashing of turn signal 120. If vehicle 100 changes lanes, it cannot enter the elevated road, so a route R32 that does not enter the elevated road is generated as the lane change route.

[0133] Next, as Figure 19 As shown, the navigation system 200 can simultaneously display a map 241b showing the change from the existing route R31 to the changed route R32, as well as the degree of change in driving distance and arrival time 243, and driving information 242a including driving distance and arrival time based on the existing route.

[0134] According to one embodiment of the present invention, the situation in which vehicle 100 is expected to change lanes without turning at an intersection may include situations where the vehicle enters an underground road or tunnel. It should be noted that the situation in which vehicle 100 does not turn at an intersection and is expected to change its route is not limited to these examples.

[0135] Figure 20 This is a schematic diagram illustrating a driving guidance screen according to an embodiment of the present invention.

[0136] like Figure 20 As shown, the navigation system 200 can display only the existing route as a driving route before the vehicle equipped with the navigation system 200 arrives at the intersection. As a specific example, the existing route information 244a may include the current position of the vehicle 100 and the location of the existing driving route on the map.

[0137] Next, the navigation system 200 can display route change effect information after detecting that a vehicle 100 with a different existing route at the intersection is flashing or not flashing its turn signal. For example, Figure 20 As shown, the navigation system 200 can display the changes in arrival time (decreasing by 10 minutes) and travel distance (decreasing by 1 km) due to route changes as route change effect information 244b. Furthermore, the navigation system can also display the location of the changed route on the map as route change effect information 244b. The location of the changed route on the map can be displayed in a way that distinguishes it from the location of the existing route on the map. It should be noted that the method of displaying route change effect information 244b is not limited to these examples.

[0138] Next, if the turn signal at the intersection, indicating a different direction from the existing route, flashes and then goes out, the navigation system 200 can then display the information 244a about the existing route again. Furthermore, if the turn signal, indicating a different direction from the existing route, stops flashing and then turns back on, the navigation system 200 can then display the information 244a about the existing route again. For example, if the driver of a vehicle equipped with the navigation system 200 flashes their turn signal and intentionally changes route before turning it off, the navigation system 200 can immediately display only the information 244a about the existing route.

[0139] Next, while the turn signal at the intersection, which is in a different direction from the existing route, continues to flash / not flash, if the position of the vehicle equipped with navigation system 200 changes according to the changed route instead of the existing route, navigation system 200 can immediately display only the information 244c of the changed route. For example, if navigation system 200 is displaying information about the impact of a route change (e.g., changes in arrival time and travel distance after a right turn), and the driver turns right, and the position of the vehicle equipped with navigation system 200 changes accordingly, navigation system 200 can change the driving route to a right-turn route and display only the information 244c of the right-turn route.

[0140] This route display method allows for immediate changes to the driving route in response to the driver's operation of the turn signal control. Furthermore, the navigation system 200 can quickly change the driving route using an existing modified route to provide guidance without calculating a new route when vehicle location information (GPS, etc.) changes.

[0141] According to a route display method of an embodiment of the present invention, a driver of a vehicle equipped with a navigation system 200 can quickly view relevant information about the changed route before the driving route changes from the existing route to the changed route. Furthermore, the driver of a vehicle equipped with a navigation system 200 can obtain relevant information about the changed route without manually inputting information into the navigation system 200. Since the driver does not need to manually input information, road conditions can be continuously monitored, thereby avoiding accidents that may occur due to driver inattention, or easily responding to accidents that do occur.

[0142] Furthermore, according to one embodiment of the present invention, if the distance from the intersection or the time required to reach the intersection is greater than or equal to a threshold, route change effect information is displayed before the vehicle equipped with the navigation system 200 reaches the intersection, so that the driver can view the route change effect information and select a route. On the other hand, if the distance from the intersection or the time required to reach the intersection is less than the threshold, the route change effect information is displayed after the vehicle reaches the intersection, so that the driver cannot view the route change effect information and select a route. Therefore, by displaying route change effect information only when the distance from the intersection is greater than or equal to the threshold, practical assistance can be provided to the driver in selecting a route.

[0143] Furthermore, the route display method according to an embodiment of the present invention can more accurately reflect the driver's driving intentions. In addition, when the driver does not intend to change the driving route from the existing route to the changed route, the navigation system 200 may not display route change effect information, saving computing resources.

[0144] Furthermore, the route display method according to an embodiment of the present invention allows drivers to quickly receive information about route changes (such as travel distance, arrival time, driving instructions, etc.), and by providing the expected route before the driver changes the route, blank spaces in the route guidance can be minimized.

[0145] Furthermore, according to one embodiment of the present invention, the driving route can be changed immediately in response to the driver's operation of the turn signal control device. In addition, the navigation system 200 can quickly change the driving route using the existing changed route to provide guidance without calculating a new route when the vehicle location information (GPS, etc.) changes.

[0146] The effects of the present invention are not limited to those described above, and those skilled in the art can clearly understand other effects not mentioned from the content of the present invention.

[0147] The following will refer to Figure 21 The hardware configuration of an exemplary computing device according to some embodiments of the present invention is described. This computing device may be a navigation system 200 or a server 300, etc. The computing system 1000 of this embodiment may include one or more processors 1100, a system bus 1600, a communication interface 1200, a memory 1400 for loading a computer program 1500 executed by the processor 1100, and an auxiliary memory 1300 for storing the computer program 1500. Figure 21 Only components relevant to embodiments of the present invention are shown. Therefore, those skilled in the art should understand that, in addition to... Figure 21 In addition to the components shown, other general-purpose components may also be included.

[0148] Processor 1100 can control the overall operation of the various components of computing device 1000. Processor 1100 may include at least one of CPU (Central Processing Unit), MPU (Micro Processor Unit), MCU (Micro Controller Unit), GPU (Graphics Processing Unit), or any processor known in the art. Furthermore, processor 1100 can execute operations for performing at least one application or program for performing operations / methods according to various embodiments of the present invention. Computing device 1000 may include two or more processors.

[0149] Memory 1400 can store various data, commands, and / or information. Memory 1400 can load one or more computer programs 1500 from auxiliary memory 1300 to perform methods / operations according to various embodiments of the present invention. Examples of memory 1400 may be RAM, but are not limited thereto.

[0150] System bus 1600 provides communication functionality between components of computing device 1000. System bus 1600 can be implemented as various types of buses, such as address bus, data bus, and control bus. Communication interface 1200 can support wired / wireless Internet communication of computing device 1000. Furthermore, communication interface 1200 can support various communication methods other than Internet communication. For this purpose, communication interface 1200 can include communication modules known in the art. Auxiliary memory 1300 can non-temporarily store one or more computer programs 1500. Auxiliary memory 1300 can include non-volatile memory such as flash memory, hard disk, removable disk, or any type of computer-readable recording medium known in the art.

[0151] Computer program 1500 may include one or more instructions according to various embodiments of the present invention. When computer program 1500 is loaded into memory 1400, processor 1100 may execute one or more instructions to perform operations / methods according to various embodiments of the present invention.

Claims

1. A route display method, executed by a computing device, characterized in that, Includes the following steps: Displays driving guidance screens corresponding to the first intersection included in the existing route from the origin to the destination; Detect the flashing of turn signals at a location corresponding to the first intersection in a direction different from the direction of the existing route; as well as In response to the detection of the turn signal flashing, information related to the change in the existing route is displayed.

2. The route display method according to claim 1, characterized in that, The steps for displaying information related to changes to the existing route include the following steps: Information related to changes in the existing route is displayed before a turn is detected in the direction of the flashing turn signal and before a route update procedure is executed due to the positional movement of the computing device caused by subsequent driving.

3. The route display method according to claim 1, characterized in that, The step of displaying information related to changes in the existing route on the driving guidance screen includes the following steps: Calculate the distance between the first intersection and the location of the computing device; and If the distance is greater than or equal to the threshold, information related to the change of the existing route will be displayed on the driving guidance screen.

4. The route display method according to claim 1, characterized in that, The steps for displaying information related to changes to the existing route include the following steps: Calculate the time it takes for the computing device to reach the first intersection; and If the time is greater than or equal to the threshold, information related to the change of the existing route will be displayed on the driving guidance screen.

5. The route display method according to claim 1, characterized in that, The steps for displaying information related to changes to the existing route include the following steps: Measure the flashing duration of the turn signal; and If the flashing duration is greater than or equal to a threshold, information related to the change of the existing route will be displayed on the driving guidance screen.

6. The route display method according to claim 1, characterized in that, The steps for displaying information related to changes to the existing route include the following steps: Measure the number of flashes of the turn signal; and If the number of flashes is greater than or equal to a threshold, information related to the change of the existing route will be displayed on the driving guidance screen.

7. The route display method according to claim 1, characterized in that, The steps for displaying information related to changes to the existing route include the following steps: Measuring the moving speed of the computing device; and When it is detected that the moving speed of the computing device has changed due to the change of the existing route, information related to the change of the existing route is displayed on the driving guidance screen.

8. The route display method according to claim 1, characterized in that, It also includes the following steps: In response to detecting the turn signal flashing, calculate the probability that the existing route will change to the changed route; and If the probability is greater than or equal to a predetermined threshold, information related to the changed route is displayed.

9. A route display method, executed by a computing device, comprising the following steps: Displays a driving guidance screen corresponding to the first intersection included in the existing route from the origin to the destination, the existing route including a left or right turn at the first intersection; The test confirmed that the turn signal was not flashing at the location corresponding to the first intersection. as well as In response to the detection that the turn signal is not flashing, information related to the change of the existing route is displayed on the driving guidance screen.

10. The route display method according to claim 9, characterized in that, The steps to detect that the turn signal is not flashing include the following: When the duration of continuous flashing of the turn signal is less than or equal to a predetermined threshold, it is determined that the turn signal is not flashing.

11. The route display method according to claim 9, characterized in that, The steps to detect that the turn signal is not flashing include the following: When the number of flashes of the turn signal is less than or equal to a predetermined threshold, it is determined that the turn signal is not flashing.

12. The route display method according to claim 9, characterized in that, The steps for displaying information related to changes to the existing route include the following steps: Measure the moving speed of the computing device; Determine the amount of change in the measured moving speed; and When the determined change amount is not within the range of the determined change amount based on a left or right turn, information related to the change in the existing route is displayed.

13. A route display method, executed by a computing device, comprising the following steps: Displays driving guidance screens corresponding to the first intersection included in the existing route from the origin to the destination; Detect the flashing of the turn signal used for lane changing at the location corresponding to the first intersection; Displays information related to the change in the existing route caused by the lane change.

14. A route display device, characterized in that, include: Processor; and The memory contains multiple instructions. When the instruction is executed by the processor, the processor performs the following operations: Displays driving guidance screens corresponding to the first intersection included in the existing route from the origin to the destination; Detecting the flashing of a turn signal at a location corresponding to the first intersection in a direction different from the direction of the existing route; and In response to the detection of the turn signal flashing, information related to the change in the existing route is displayed.

15. A route display device, characterized in that, include: Processor; and The memory contains multiple instructions. When the instruction is executed by the processor, the processor performs the following operations: Displays a driving guidance screen corresponding to the first intersection included in the existing route from the origin to the destination, the existing route including a left or right turn at the first intersection; The detection shows that the turn signal does not flash at the location corresponding to the first intersection; and In response to detecting that the turn signal is not flashing, information related to the change in the existing route is displayed.

16. A route display device, characterized in that, include: Processor; and The memory contains multiple instructions. When the instruction is executed by the processor, the processor performs the following operations: Displays driving guidance screens corresponding to the first intersection included in the existing route from the origin to the destination; Detect the flashing of the turn signal used for lane changing at the location corresponding to the first intersection; Displays information related to the change in the existing route caused by the lane change.

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