Route guidance device, system, and route guidance method

Abstract

To provide a new technique related to a route guidance device that guides users to travel routes.SOLUTION: A route guidance device for guiding a user to a travel route includes: an acquiring unit that acquires, from a communication device, location information including a starting point and a destination of the user; a searching unit that searches for a plurality of travel routes from the starting point to the destination based on the location information acquired by the acquiring unit; and a providing unit that provides the plurality of travel routes searched for by the searching unit to the communication device. The plurality of travel routes include a first travel route on which a first mobile unit of a riding type that can travel on a roadway is used and a second travel route on which a second mobile unit of a self-propelled type that can travel on a sidewalk is used.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a route guidance device and a system and Route guidance By law Regarding. [Background technology]

[0002] In recent years, research and development of self-propelled vehicles (autonomous vehicles) equipped with an automatic driving function that allows them to travel automatically and autonomously without the need for driver operation has progressed. Examples of such autonomous vehicles include passenger-type vehicles that carry a small number of users (approximately one to two people) and travel to a destination, known as micromobility. There are also non-passenger-type vehicles that cannot carry users but can carry their luggage and guide them to their destination, known as driving assistance robots.

[0003] Ultra-compact mobility vehicles and driving support robots, especially ultra-compact mobility vehicles, can travel not only on roads (roads intended for vehicle traffic) but also on sidewalks (roads intended for pedestrian traffic), and are expected to be used as a convenient means of transportation in local areas for tourists and others. Furthermore, when utilizing ultra-compact mobility vehicles and driving support robots, it is conceivable to combine them with various services, such as route guidance services and vehicle dispatch services, via communication devices owned by users. Several technologies related to such services have been proposed in the past (see Patent Documents 1 to 4). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-38302 [Patent Document 2] Japanese Patent Application Publication No. 2022-97394 [Patent Document 3] Patent Publication No. 2021-22108 [Patent Document 4] Japanese Patent Application Publication No. 2020-112519 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the technologies disclosed in Patent Documents 1 to 4 are not technologies related to ultra-compact mobility. Therefore, there is a need for technologies related to new services that promote the use of ultra-compact mobility or the combined use of ultra-compact mobility and driving assistance robots. In particular, there is a need for technologies related to services that present (provide) users with the unique benefits of ultra-compact mobility.

[0006] An exemplary object of the present invention is to provide a new technique related to a route guidance device that guides a user along a travel route. [Means for solving the problem]

[0007] A route guidance device according to one aspect of the present invention is a route guidance device that guides a user along a travel route, and includes: an acquisition unit that acquires location information including a departure point and a destination point of the user from a communication device; a search unit that searches for a plurality of travel routes from the departure point to the destination based on the location information acquired by the acquisition unit; and a provision unit that provides the plurality of travel routes searched by the search unit to the communication device; each of the plurality of travel routes includes the departure point and the destination specified by the user; The plurality of movement routes include a first movement route using a ride-on type first moving body that can travel on a roadway, and a second movement route using a self-propelled second moving body that can travel on a sidewalk. fruit , the first moving body and the second moving body are different moving bodies, the search unit searches for the plurality of moving routes taking into consideration different travelable ranges of the first moving body and the second moving body, and further includes a calculation unit that calculates a first required time required for the first moving body to travel the first moving route, a second required time required for the second moving body to travel the second moving route, and a difference between the first required time and the second required time, and the provision unit simultaneously provides the first moving route and the second moving route, together with the first required time, the second required time, and the difference, in a manner that allows them to be identified on a display unit of the communication device. It is characterized by:

[0008] According to another aspect of the present invention, there is provided a system including a route guidance device that guides a user along a travel route, and a communication device that can communicate with the route guidance device, the system including: an acquisition unit that acquires location information including a departure point and a destination point of the user from the communication device; a search unit that searches for a plurality of travel routes from the departure point to the destination based on the location information acquired by the acquisition unit; and a provision unit that provides the plurality of travel routes searched by the search unit to the communication device; each of the plurality of travel routes includes the departure point and the destination specified by the user; The plurality of movement routes include a first movement route using a ride-on type first moving body that can travel on a roadway, and a second movement route using a self-propelled second moving body that can travel on a sidewalk. fruit , the first moving body and the second moving body are different moving bodies, the search unit searches for the plurality of moving routes taking into consideration different travelable ranges of the first moving body and the second moving body, and further includes a calculation unit that calculates a first required time required for the first moving body to travel the first moving route, a second required time required for the second moving body to travel the second moving route, and a difference between the first required time and the second required time, and the provision unit simultaneously provides the first moving route and the second moving route, together with the first required time, the second required time, and the difference, in a manner that allows them to be identified on a display unit of the communication device. It is characterized by:

[0009] A route guidance method according to yet another aspect of the present invention is a route guidance method for guiding a travel route to a user, the method comprising: The acquisition unit: a first step of acquiring location information including a departure point and a destination point of the user from a communication device; The search section a second step of searching for a plurality of travel routes from the departure point to the destination based on the location information acquired in the first step; The provision department a third step of providing the plurality of travel routes searched in the second step to the communication device; each of the plurality of travel routes includes the departure point and the destination specified by the user; The plurality of movement routes include a first movement route using a ride-on type first moving body that can travel on a roadway, and a second movement route using a self-propelled second moving body that can travel on a sidewalk. fruit , the first moving body and the second moving body are different moving bodies, and the second step further includes a fourth step of searching for the plurality of moving routes taking into consideration different travelable ranges of the first moving body and the second moving body, and calculating a first required time required for the first moving body to travel the first moving route, a second required time required for the second moving body to travel the second moving route, and a difference between the first required time and the second required time, and the third step simultaneously providing the first moving route and the second moving route, together with the first required time, the second required time, and the difference, in a distinguishable manner on a display unit of the communication device. It is characterized by:

[0011] Further objects and other aspects of the present invention will become apparent from the following description of the embodiments with reference to the accompanying drawings. [Effects of the Invention]

[0012] According to the present invention, for example, it is possible to provide a new technique relating to a route guidance device that guides a user along a travel route. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a schematic diagram showing a configuration of a system according to one aspect of the present invention. [Figure 2] FIG. 2 is a diagram for explaining an example of the flow of a route guidance service in the system shown in FIG. [Figure 3] 2 is a block diagram showing an example of the configuration of a processor of the route guidance device shown in FIG. 1. FIG. [Figure 4] 2 is a diagram showing a specific example of a route display screen displayed on the communication device (display unit) shown in FIG. 1. FIG. [Figure 5] 1. FIG. 4 is a diagram showing another specific example of a route display screen displayed on the communication device (display unit) shown in FIG. [Figure 6] 1. FIG. 6 is a diagram showing yet another specific example of a route display screen displayed on the communication device (display unit) shown in FIG. [Figure 7] 1. FIG. 6 is a diagram showing yet another specific example of a route display screen displayed on the communication device (display unit) shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the invention according to the claims, and not all combinations of features described in the embodiments are necessarily essential to the invention. Two or more of the features described in the embodiments may be arbitrarily combined. Furthermore, the same reference numerals are used for the same or similar components, and redundant explanations will be omitted.

[0015] Fig. 1 is a schematic diagram showing the configuration of a system 1 according to one aspect of the present invention. As shown in Fig. 1, the system 1 includes a public vehicle 100, a micro vehicle 200, a robot vehicle 300, a communication device 400 carried by a user, and a route guidance device 500, and is a system that provides a route guidance service. Here, the route guidance service is a service that provides a user with guidance on a travel route from a departure point to a destination.

[0016] To use the route guidance service provided by the system 1 (route guidance device 500), the user installs an application that enables the user to enjoy the route guidance service in the communication device 400. The user also registers information about the user (user information) in the route guidance device 500 via the application installed in the communication device 400. The application may be a web application that runs on a web browser. The route guidance device 500 manages identification information that can identify each user, such as a user name or email address, as the user information registered by the user.

[0017] The public vehicle 100 is a vehicle that can be used by an unspecified number of users, a vehicle that belongs to public transportation, and typically includes automobiles such as rental cars, taxis, and buses. The public vehicle 100 is a passenger-type vehicle (first moving body) that can carry users and travel on roadways. The public vehicle 100 cannot travel on sidewalks and can only travel on roadways. Here, roadways refer to roads intended for vehicle traffic, and sidewalks refer to roads intended for pedestrian traffic. However, the term sidewalk is taken to be a broad concept that includes areas where pedestrians can pass, such as large commercial facilities, amusement facilities, parks, and parking lots.

[0018] The microvehicle 200 is a self-propelled vehicle (autonomous vehicle) equipped with an automatic driving function that allows it to travel automatically and autonomously. In this embodiment, the microvehicle 200 is embodied as a passenger-type vehicle (second moving body) that can carry a small number of users (approximately one to two people) and travel on roadways and sidewalks, a so-called ultra-compact mobility. Note that while the travel of the microvehicle 200 is assumed to be by automatic driving that does not require driving operation by a driver (user), this does not exclude travel by user driving operation after the user rides in the microvehicle 200. Furthermore, a passenger-type vehicle does not mean a vehicle that requires a person (user) to ride in it, but means a vehicle that can be ridden by a person. Therefore, the microvehicle 200, which is a passenger-type vehicle, can travel using the automatic driving function even when no user is riding in it.

[0019] The robot vehicle 300 is a self-propelled vehicle equipped with an automatic driving function that travels automatically and autonomously. The robot vehicle 300 is a non-rider-type vehicle (second moving body, third moving body) that cannot carry a user but can travel on roadways and sidewalks. In this embodiment, the robot vehicle 300 is embodied as a so-called travel assistance robot, a vehicle that has at least one of the functions of holding the user's luggage and guiding (e.g., leading) the user. The robot vehicle 300 can also hold the user's luggage and follow the user, or can hold the user's luggage and transport (deliver) it to a specific location. Furthermore, the robot vehicle 300 generally has a width narrower than that of the microvehicle 200. Therefore, even on sidewalks, depending on the width, there are sidewalks that the robot vehicle 300 can travel on but that the microvehicle 200 cannot travel on. Therefore, the range of sidewalks that the robot vehicle 300 can travel on is wider than the range of sidewalks that the microvehicle 200 can travel on. This allows the robot vehicle 300 to have a higher degree of freedom in terms of its travel route compared to the micro vehicle 200. The robot vehicle 300 may be embodied as a drone that functions to assist the user as described above. Strictly speaking, a drone is not a vehicle that can travel on roads and sidewalks, but in this embodiment, it is included in the robot vehicle 300 in the broad sense of being able to fly on roads and sidewalks (able to move along roads and sidewalks).

[0020] Each of the public vehicle 100, the micro vehicle 200, and the robot vehicle 300 may include a communication interface (I / F) that can communicate with other devices (external) such as a communication device 400 or a route guidance device 500 via a network NW, for example.

[0021] The communication device 400 is a device that can be carried by a user and is associated with the user. The communication device 400 includes, for example, a portable device such as a smartphone, a tablet device, a wearable device that can be attached to a part of the user's body (e.g., the shoulder or wrist), a game console, etc. The communication device 400 also includes an in-vehicle navigation device with a communication function, a fixed information terminal installed in a commercial facility, etc. The communication device 400 includes a processor 410, a memory 420, a communication interface (I / F) 430, a display unit 440, a microphone 450, and a speaker 460. Note that each of the functions (blocks) described below may be integrated or separated, and the described functions may be realized by different blocks. Furthermore, what is described as hardware may be realized by software, and vice versa.

[0022] The operation of the communication device 400 is realized, for example, by the processor 410 reading and executing a program stored in the memory 420. The communication I / F 430 is an interface that can communicate with other devices (external) such as the route guidance device 500 via a network NW using a communication system such as cellular wireless communication or wireless LAN. The display unit 440 includes a touch panel, displays various user interface screens, and accepts operations (instructions) from the user. The microphone 450 receives speech from the user who owns the communication device 400 and generates voice data (voice signals) corresponding to the speech. The speaker 460 outputs voice to the user who owns the communication device 400 to provide voice notifications.

[0023] The route guidance device 500 is configured with a general-purpose computer (information processing device). In this embodiment, the route guidance device 500 is embodied as a server that manages (controls) the route guidance service in the system 1 in particular. The route guidance device 500 includes a processor 510, a memory 520, a communication interface (I / F) 530, and a storage unit 540. Note that each of the functions (blocks) described below may be integrated or separated, and the described functions may be realized by different blocks. Furthermore, what is described as hardware may be realized by software, and vice versa.

[0024] The operation of the route guidance device 500 is realized, for example, by the processor 510 reading and executing a program stored in a computer-readable storage medium such as the memory 520 or the storage unit 540. The communication I / F 530 is an interface that can communicate with other (external) devices such as the route guidance device 500 via the network NW. The storage unit 540 stores programs and data for realizing the route guidance service. Examples of data for realizing the route guidance service include data that specifies the range of roads (roadways, or roadways and sidewalks) on which each of the public vehicles 100, the microvehicles 200, and the robotic vehicles 300 can travel.

[0025] As described above, the route guidance service is provided in the system 1 configured as above. An example of the flow of the route guidance service in the system 1 will be described with reference to FIG.

[0026] In S101, the communication device 400 requests the provision of a route guidance service in response to a user instruction (operation). Specifically, the communication device 400 launches an application that can receive the provision of the route guidance service, and performs user login by providing user information, including a predetermined ID and password, to the route guidance device 500. The application may be launched by a click operation or the like, or by specifying a URL corresponding to the route guidance device 500. In response to the user login, the communication device 400 provides a search screen on the application, and the user inputs point information including a departure point, which is the starting point of the user's travel, and a destination, which is the end point of the user's travel, via the search screen. The point information is input by the user specifying each of the departure point and the destination. For example, the point information may be input by entering an address or name in an input field provided on a search screen, or by specifying locations corresponding to the departure point and the destination on a map provided on the search screen. When point information including a departure point and a destination is input, the communication device 400 provides the point information to the route guidance device 500, thereby requesting the provision of a route guidance service.

[0027] In S102, when the route guidance device 500 receives the location information from the communication device 400, the route guidance device 500 performs a route search to search for a travel route from the departure point to the destination specified by the user. In the route search, for example, a plurality of travel routes corresponding to each of a plurality of different means of transportation, in this embodiment, a plurality of travel routes using each of the public vehicle 100, the micro vehicle 200, and the robot vehicle 300, are searched for.

[0028] In S103, the route guidance device 500 provides the communication device 400 with the result of the route search, that is, the travel route from the departure point to the destination found by the route search.

[0029] In S104, when the communication device 400 receives a travel route from the departure point to the destination from the route guidance device 500, the communication device 400 displays the travel route on the display unit 440. This allows the user to confirm the travel route from the departure point to the destination searched by the route guidance device 500 for the location information input by the user.

[0030] Here, in this embodiment, a technology is provided that promotes the use of a micro vehicle 200 (ultra-compact mobility) or the combined use of a micro vehicle 200 and a robot vehicle 300 (travel support robot) in the route search (S103). Specifically, a technology is provided that presents (provides) to the user the usefulness specific to the micro vehicle 200 or the robot vehicle 300. To realize this technology, the route guidance device 500, more specifically, the processor 510, includes, as functional blocks, an acquisition unit 511, a search unit 512, a calculation unit 513, and a provision unit 514, as shown in FIG. 3. FIG. 3 shows an example of the configuration of the functional blocks realized by the processor 510 of the route guidance device 500.

[0031] The acquisition unit 511 acquires location information including the user's departure point and destination from the communication device 400 via the communication I / F 530. As described above, the departure point and destination are basically input by the user via (a search screen provided by) the communication device 400. However, if the communication device 400 has a GPS (Global Positioning System) sensor, the acquisition unit 511 may acquire, as the departure point, location information (the current location of the communication device 400) obtained by the GPS sensor.

[0032] Furthermore, the acquisition unit 511 acquires search conditions used by the search unit 512 to search for a travel route from the user's departure point to the destination from the communication device 400 via the communication I / F 530. The search conditions are input, for example, via a search screen provided by the communication device 400. At this time, from the viewpoint of usability, it is preferable to present a plurality of search conditions to the user on the search screen in a selectable manner (i.e., to allow the user to select one search condition from a plurality of search conditions).

[0033] The search unit 512 searches for a travel route (plural travel routes) from the user's departure point to the destination for each of a plurality of different means of transportation based on the location information acquired by the acquisition unit 511. Here, the travel route from the departure point to the destination refers not only to the entire travel route from the departure point to the destination, but also to a portion of the travel route from the departure point to the destination. In this embodiment, the plurality of means of transportation are the public vehicle 100, the micro vehicle 200, and the robotic vehicle 300, and therefore the search unit 512 searches for travel routes using each of the public vehicle 100, the micro vehicle 200, and the robotic vehicle 300. Hereinafter, the travel route using the public vehicle 100 searched by the search unit 512 will be referred to as a first travel route, the travel route using the micro vehicle 200 will be referred to as a second travel route, and the travel route using the robotic vehicle 300 will be referred to as a third travel route. The search unit 512 basically searches for travel routes suitable for each of the public vehicle 100, the micro vehicle 200, and the robotic vehicle 300. However, as described above, the public vehicle 100, the micro vehicle 200, and the robotic vehicle 300 have different travelable ranges. Therefore, the first, second, and third travel routes searched by the search unit 512 are different from one another. The search unit 512 can also search for travel routes by combining multiple different modes of transportation. For example, the search unit 512 may search for a travel route by combining the public vehicle 100 and the micro vehicle 200 or by combining the public vehicle 100 and the robotic vehicle 300. Therefore, the first travel route refers to a travel route mainly using the public vehicle 100, the second travel route refers to a travel route mainly using the micro vehicle 200, and the third travel route refers to a travel route mainly using the robotic vehicle 300. Note that any technique known to those skilled in the art can be applied to the search for travel routes by the search unit 512.

[0034] Furthermore, when the acquisition unit 511 acquires search conditions in addition to location information, the search unit 512 searches for travel routes corresponding to the search conditions for each of a plurality of different travel modes. For example, the search unit 512 searches for travel routes using each of the travel modes so that a travel route from the user's departure point to the destination (i.e., between the departure point and the destination) includes a waypoint corresponding to the search conditions acquired by the acquisition unit 511. Note that the acquisition unit 511 can also acquire search conditions for each of a plurality of different travel modes (travel routes) (i.e., it is possible to acquire different search conditions set for each of the travel modes). In such a case, the search unit 512 independently searches for each of a plurality of travel routes according to each of the plurality of search conditions (different search conditions) acquired by the acquisition unit 511.

[0035] The calculation unit 513 calculates the required time for each means of transportation to travel the travel route from the user's departure point to the destination. For example, the calculation unit 513 calculates the required time by dividing the travel route from the user's departure point to the destination by the travel speed preset for each means of transportation (e.g., the average speed or speed limit of each means of transportation). In this embodiment, the calculation unit 513 calculates the required time (hereinafter referred to as the "first required time") required for the public vehicle 100 to travel the first travel route searched by the search unit 512. Similarly, the calculation unit 513 calculates the required time (hereinafter referred to as the "second required time") required for the micro vehicle 200 to travel the second travel route searched by the search unit 512. Similarly, the calculation unit 513 calculates the required time (hereinafter referred to as the "third required time") required for the robotic vehicle 300 to travel the third travel route searched by the search unit 512.

[0036] The calculation unit 513 can also calculate the difference (required time difference) between the first required time required for the public vehicle 100 to travel the first movement route and the second required time required for the micro vehicle 200 to travel the second movement route.

[0037] The providing unit 514 provides the communication device 400 with the travel route (plurality of travel routes) from the user's departure point to the destination searched for by the searching unit 512 via the communication I / F 530. In this embodiment, in order to display each of the plurality of travel routes searched for by the searching unit 512 on the display unit 440 of the communication device 400, the providing unit 514 provides each of the plurality of travel routes as display data (image data) to the communication device 400. Specifically, the providing unit 514 provides the communication device 400 with display data for distinguishably displaying each of the plurality of travel routes searched for by the searching unit 512.

[0038] Furthermore, the providing unit 514 provides the communication device 400 with the required time and required time difference calculated by the calculation unit 513 for each means of transportation to travel the travel route from the user's departure point to the destination via the communication I / F 530. In this embodiment, the required time and required time difference for each means of transportation to travel the travel route from the user's departure point to the destination are displayed on the display unit 440 of the communication device 400. Therefore, the providing unit 514 provides the required time and required time difference to the communication device 400 as display data (image data).

[0039] Hereinafter, with reference to Figures 4 to 7, we will explain route display (S104) in which travel routes (multiple travel routes from the user's departure point to the destination searched by the search unit 512) provided by the route guidance device 500 (providing unit 514) are displayed on the communication device 400.

[0040] 4 is a diagram showing a specific example of a route display screen RDS displayed on the display unit 440 of the communication device 400 in a route display. As shown in FIG. 4, the route display screen RDS includes a route display section 602, a condition display section 604, and a correspondence display section 606. Here, it is assumed that the user has specified a "station (Start)" as the user's departure point and a "place of accommodation (Goal)" as the user's destination.

[0041] The route display unit 602 displays multiple travel routes from the user's departure point to the destination that have been searched for by the search unit 512. In FIG. 4, the route display unit 602 displays a first travel route MR1 using the public vehicle 100, a second travel route MR2 using the micro vehicle 200, and a third travel route MR3 using the robotic vehicle 300. In this manner, in this embodiment, the first travel route MR1, the second travel route MR2, and the third travel route MR3 are displayed on the route display unit 602 (the display unit 440 of the communication device 400). This allows the user to recognize the usefulness of using the micro vehicle 200 or the robotic vehicle 300 compared to using the public vehicle 100. This leads to promotion of using the micro vehicle 200 or the robotic vehicle 300.

[0042] The condition display unit 604 displays search conditions used by the search unit 512 to search for a travel route from the user's departure point to the destination. In FIG. 4, the search conditions displayed in the condition display unit 604 are "shortest distance," "shopping / dining," "learning," and "nature." The condition display unit 604 also identifiably displays the search condition selected by the user on the search screen ("shortest distance" in FIG. 2). If the user does not select a search condition, for example, "shortest distance" is selected as the initial setting. The condition display unit 604 may also display multiple search conditions ("shortest distance," "shopping / dining," "learning," and "nature") for the user to select. This allows the user to input (select) search conditions via the condition display unit 604 (the route display screen RDS provided by the communication device 400), allowing the user to easily change the search conditions according to their own desires (intentions). Therefore, usability can be improved.

[0043] 4, as described above, "shortest distance" is selected as the search condition. Therefore, the search unit 512 searches for a travel route for each of the public vehicle 100, the micro vehicle 200, and the robotic vehicle 300 so that the distance from the user's departure point to the destination is the shortest. Therefore, the first travel route MR1 displayed on the route display unit 602 is the shortest travel route when using the public vehicle 100. Similarly, the second travel route MR2 and the third travel route MR3 displayed on the route display unit 602 are the shortest travel routes when using the micro vehicle 200 and the robotic vehicle 300, respectively. This allows the user to easily understand the shortest travel route when using the public vehicle 100, the micro vehicle 200, and the robotic vehicle 300.

[0044] The correspondence display unit 606 displays the correspondence between the travel route (diagram) displayed in the route display unit 602 and various means of transportation (schematic diagrams). In Fig. 4, the correspondence between each schematic diagram of the public vehicle 100, the micro vehicle 200, and the robot vehicle 300 and each of the first travel route MR1, the second travel route MR2, and the third travel route MR3 is displayed in the correspondence display unit 606. This allows the user to easily understand each of the first travel route MR1, the second travel route MR2, and the third travel route MR3 displayed in the route display unit 602.

[0045] 4, for the first movement route MR1 using the public vehicle 100, both the second movement route MR2 using the micro vehicle 200 and the third movement route MR3 using the robot vehicle 300 are displayed in the route display unit 602. However, for the first movement route MR1, only one of the second movement route MR2 and the third movement route MR3 may be displayed in the route display unit 602. Selection of the movement route to be displayed in the route display unit 602 is realized, for example, by providing icons, such as check boxes, for selecting each of the micro vehicle 200 and the robot vehicle 300 displayed in the correspondence display unit 606, as shown in FIG.

[0046] 4, only the first movement route MR1 using the public vehicle 100, the second movement route MR2 using the micro vehicle 200, and the third movement route MR3 using the robot vehicle 300 are displayed on the route display unit 602. However, in addition to each movement route, the route display unit 602 may also display the required time for each means of transportation to travel each movement route calculated by the calculation unit 513. Specifically, a first required time (e.g., "required time: 30 minutes") required for the public vehicle 100 to travel the first movement route MR1 is displayed adjacent to or superimposed on the first movement route MR1. Similarly, a second required time (e.g., "required time: 25 minutes") required for the micro vehicle 200 to travel the second movement route MR2 is displayed adjacent to or superimposed on the second movement route MR2. This allows the user to easily understand the required time when using the public vehicle 100 and the required time when using the micro vehicle 200.

[0047] Furthermore, in addition to each travel route and each required time, the required time difference calculated by the calculation unit 513 may be displayed on the route display unit 602. Specifically, the required time difference, which is the difference between the first required time for the public vehicle 100 to travel the first travel route and the second required time for the micro vehicle 200 to travel the second travel route, is displayed on the route display unit 602. This allows the user to easily understand the required time difference between using the public vehicle 100 and using the micro vehicle 200. Therefore, the user can easily understand, for example, whether using the public vehicle 100 will allow them to arrive at their destination faster, or whether using the micro vehicle 200 will allow them to arrive at their destination faster.

[0048] FIG. 5 is a diagram showing another specific example of the route display screen RDS displayed on the display unit 440 of the communication device 400 in route display. Referring to the condition display unit 604, in FIG. 5, "shopping and dining" is selected as the search condition. Therefore, the search unit 512 searches for a travel route for each of the public vehicle 100, the micro vehicle 200, and the robotic vehicle 300, so that the travel route from the user's departure point to the destination is a travel route suitable for "shopping and dining." For example, the search unit 512 searches for a travel route so that the travel route from the user's departure point to the destination includes a stopover corresponding to the search condition "shopping and dining." In this embodiment, the search unit 512 searches for a first travel route MR1 and a second travel route MR2 so that the travel routes using the public vehicle 100 and the micro vehicle 200 each include a "shopping street" or a "restaurant" corresponding to "shopping and dining." Furthermore, the search unit 512 searches for a third travel route MR3 so that the travel route using the robotic vehicle 300 includes a "shopping street" corresponding to "shopping and dining." Therefore, the route display unit 602 displays a first movement route MR1 and a second movement route MR2 that include a "shopping street" and a "restaurant" between the departure point and the destination, and a third movement route MR3 that includes a "shopping street" between the departure point and the destination. This allows the user to recognize the usefulness of using the micro vehicle 200 or the robotic vehicle 300 according to the search conditions, compared to using the public vehicle 100. Note that, here, it is assumed that the robotic vehicle 300 is used to deliver the user's luggage (e.g., goods purchased in the "shopping street") to the destination, and the third movement route MR3 includes only the "shopping street." Therefore, in order to deliver the user's luggage before the user, the robotic vehicle 300 departs from the "station" and travels only through the "shopping street" (without passing through the "restaurant") toward the "accommodation." On the other hand, the micro vehicle 200 departs from the "station" and travels through the "shopping street" and the "restaurant" toward the "accommodation." In this way, the third movement route MR3 using the robotic vehicle 300 is a movement route that is different from the second movement route MR2 using the micro vehicle 200.However, if the robot vehicle 300 is used to carry the user's luggage and follow the user, the third movement route MR3 may include the restaurant. In this case, the third movement route MR3 using the robot vehicle 300 is the same movement route as the second movement route MR2 using the micro vehicle 200.

[0049] FIG. 6 is a diagram showing yet another specific example of the route display screen RDS displayed on the display unit 440 of the communication device 400 in route display. Referring to the condition display unit 604, in FIG. 6, "learning" is selected as the search condition. Therefore, the search unit 512 searches for a travel route for each of the public vehicle 100, the micro vehicle 200, and the robotic vehicle 300 so that the travel route from the user's departure point to the destination is a travel route suitable for "learning." For example, the search unit 512 searches for a travel route so that the travel route from the user's departure point to the destination includes a stopover corresponding to the search condition "learning." In this embodiment, the first travel route MR1 and the second travel route MR2 are searched for so that the travel routes using the public vehicle 100 and the micro vehicle 200 each include a "monument" or a "history museum" corresponding to "learning."

[0050] On the other hand, as described above, the robotic vehicle 300 is assumed to be used to deliver the user's luggage to the destination, and no new luggage that the robotic vehicle 300 needs to transport is generated at the "monument" or "history museum." In such a case, the travel route using the robotic vehicle 300 does not need to include the "monument" or "history museum," which correspond to "learning." Therefore, for the robotic vehicle 300, the search condition can be set to "shortest distance," and the travel route can be searched for so that the distance from the user's departure point to the destination is the shortest. In this way, it is also possible to independently select search conditions for the microvehicle 200 and the robotic vehicle 300 (i.e., search conditions for each means of transportation). This allows the user to use the microvehicle 200 and the robotic vehicle 300 while enjoying the unique usefulness of each vehicle.

[0051] Furthermore, as shown in FIG. 6, the robot vehicle 300 may search for a third movement route MR3 so that its movement route includes a waypoint corresponding to the current time. For example, if the current time is lunchtime (around noon), the user may need a lunch box to go to a "monument" or a "history museum." Therefore, the robot vehicle 300 searches for a third movement route MR3 so that the movement route includes a "shopping street" (where the user purchases a lunch box) corresponding to the current time, and the robot vehicle 300 transports (delivers) the lunch box purchased in the "shopping street" to the user as luggage. Therefore, the robot vehicle 300 departs from the "station," passes through the "shopping street," purchases a lunch box, and travels toward the "user" (the user's current location) to transport the lunch box to the user. This allows the user to recognize the usefulness of using the robot vehicle 300 according to the current time.

[0052] It is also possible to search for the first movement route MR1 and the second movement route MR2 so that the movement route includes a waypoint according to the current time not only for the robot vehicle 300 but also for the public vehicle 100 and the micro vehicle 200. In this case, the user can recognize the usefulness according to the current time of using the micro vehicle 200 (or the robot vehicle 300) compared to using the public vehicle 100.

[0053] FIG. 7 is a diagram showing yet another specific example of the route display screen RDS displayed on the display unit 440 of the communication device 400 in route display. Referring to the condition display unit 604, in FIG. 7, "nature" is selected as the search condition. Therefore, the search unit 512 searches for a travel route for each of the public vehicle 100 and the micro vehicle 200 so that the travel route from the user's departure point to the destination will be a travel route suitable for "nature." For example, the search unit 512 searches for a travel route so that the travel route from the user's departure point to the destination will include a stopover corresponding to the search condition "nature." In this embodiment, the first travel route MR1 and the second travel route MR2 are searched for so that the travel routes using the public vehicle 100 and the micro vehicle 200 will include "mountains" and "lakes" corresponding to "nature."

[0054] Here, the second travel route MR2 using the microvehicle 200 may be a combination of a travel route MR21 using the user's walking and a travel route MR22 using the microvehicle 200, as shown in FIG. 7. For example, it may be possible for the user to arrive at the "accommodation" (destination) faster if the user boards the microvehicle 200 at a relay point SP that is a different location from the "station" than if the user boards the microvehicle 200 at the "station" (departure point). In such a case, the second travel route MR2 may be searched for so as to include the travel route MR21 using the user's walking from the "station" to the relay point SP, and the travel route MR22 using the microvehicle 200 from the relay point SP to the "accommodation" ("mountain" and "lake"). This allows the user to further recognize the usefulness of using the microvehicle 200.

[0055] 7, the second movement route MR2 is described as a combination of a movement route MR21 using the user's walking and a movement route MR22 using the micro vehicle 200, but this is not limited to this. For example, a combination of a movement route using the public vehicle 100 and a movement route using the micro vehicle 200 may be the second movement route MR2 using the micro vehicle 200. Similarly, a combination of a movement route using the public vehicle 100 and a movement route using the robot vehicle 300 may be the third movement route MR3. Furthermore, the stopover point SP may be any point different from the departure point or destination, and may be, for example, one of the various waypoints described above.

[0056] Furthermore, when the user selects the second travel route MR2 including travel routes MR21 and MR22 via the route display screen RDS, it is preferable that a reservation instruction for the microvehicle 200 is transmitted from the communication device 400 to the route guidance device 500. The reservation instruction for the microvehicle 200 is an instruction to dispatch the microvehicle 200 to the relay point SP. This improves usability and promotes the use of the microvehicle 200. Note that a selection button for selecting the travel route displayed in the route display unit 602 is provided, for example, on the correspondence display unit 606, and when the user presses this selection button, a reservation instruction for the microvehicle 200 is realized.

[0057] 7, the robot vehicle 300 may search for a third movement route MR3 so that its movement route includes a waypoint corresponding to the current time. For example, if the current time is lunchtime (around 12:00), as described above, there is a possibility that the user needs a lunch box. Therefore, the robot vehicle 300 searches for a third movement route MR3 so that the movement route includes the "shopping street" corresponding to the current time (where the user purchases a lunch box), and the lunch box purchased in the "shopping street" is transported (delivered) as luggage to, for example, a relay point SP. Therefore, the robot vehicle 300 departs from the "station," passes through the "shopping street," purchases a lunch box, and travels toward the relay point SP to transport the lunch box to the user.

[0058] As described above, system 1 can provide technology that promotes the use of micro vehicle 200 (ultra-compact mobility) or the combined use of micro vehicle 200 and robot vehicle 300 (travel support robot). Specifically, system 1 can provide technology that presents (provides) to users the usefulness specific to micro vehicle 200 and robot vehicle 300.

[0059] In the present embodiment, the system 1 providing a route guidance service has been described as an example, but the present invention is not limited thereto. For example, the route guidance device 500 alone constitutes one aspect of the present invention. Furthermore, a program that operates the communication device 400, specifically, a program that causes the communication device 400 to function as an acquisition unit, a transmission unit, a reception unit, and a display unit, also constitutes one aspect of the present invention. The acquisition unit in the communication device 400 has a function of acquiring location information including a user's departure point and destination, and is realized, for example, by a display unit 440 (touch panel) or a microphone 450. The transmission unit in the communication device 400 has a function of transmitting the location information acquired by the acquisition unit to the route guidance device 500, and is realized, for example, by a communication I / F 430. The reception unit in the communication device 400 has a function of receiving, from the route guidance device 500, multiple travel routes searched based on the location information, and is realized, for example, by the communication I / F 430. The display unit in the communication device 400 has a function of displaying the multiple travel routes received by the reception unit, and is realized, for example, by the display unit 440.

[0060] <Summary of the embodiment> [Item 1] The route guidance device of the above embodiment A route guidance device (e.g., 500) that guides a user along a travel route, An acquisition unit (e.g., 510, 511) that acquires location information including the user's departure point and destination from a communication device (e.g., 400); a search unit (e.g., 510, 512) that searches for a plurality of travel routes (e.g., MR1, MR2, MR3) from the departure point to the destination based on the location information acquired by the acquisition unit; a providing unit (e.g., 510, 514) that provides the communication device with the plurality of travel routes searched by the searching unit; and each of the plurality of travel routes includes the departure point and the destination specified by the user; The plurality of movement paths include: A first moving path (e.g., MR1) using a first riding type moving body (e.g., 100) that can travel on a roadway; a second movement path (e.g., MR2, MR3) using a second self-propelled moving body (e.g., 200, 300) that can travel on a sidewalk; Including fruit , the first moving body and the second moving body are different moving bodies, the search unit searches for the plurality of travel routes taking into consideration different travelable ranges of the first moving body and the second moving body; further comprising a calculation unit (e.g., 513) that calculates a first required time required for the first moving body to travel along the first moving path, a second required time required for the second moving body to travel along the second moving path, and a difference between the first required time and the second required time; the providing unit simultaneously provides the first moving route and the second moving route, together with the first required time, the second required time, and the difference, in a manner that allows the first moving route and the second moving route to be distinguished on a display unit of the communication device. It is characterized by:

[0061] According to this embodiment, the user can recognize the usefulness of using the second moving body compared to using the first moving body. According to this embodiment, the user can easily understand the time required when using the first moving body and the time required when using the second moving body. Furthermore, according to this embodiment, the user can easily understand the difference in the time required when using the first moving body and the second moving body.

[0062] [Item 2] The route guidance device according to item 1, The second moving body (for example, 200) is a riding vehicle.

[0063] According to this embodiment, an ultra-small mobility (micromobility) can be used as the second moving body.

[0064] [Item 3] The route guidance device according to item 1, The second moving body (for example, 300) is characterized in that it is a non-rider type vehicle.

[0065] According to this embodiment, a travel support robot can be used as the second moving body.

[0066] [Item 4] The route guidance device according to item 1 or 2, the plurality of movement routes (e.g., MR1, MR2, MR3) includes a third movement route (e.g., MR3) using a self-propelled third moving body (e.g., 300) that can travel on a sidewalk; The second moving body (e.g., 200) is a riding vehicle, The third moving body is a non-rider type vehicle.

[0067] According to this embodiment, an ultra-compact mobility vehicle can be used as the second moving body, and a travel support robot can be used as the third moving body.

[0068] [Item 5] The route guidance device according to item 4, The third moving body (for example, 300) is a vehicle having at least one of a function of holding the user's luggage and a function of guiding the user to the destination.

[0069] According to this embodiment, a travel support robot having a function of holding the user's luggage and a function of guiding the user to the destination can be used as the third moving body.

[0070] [Item 6] The route guidance device according to item 4 or 5, The range of the sidewalk that the third moving body (for example, 300) can travel on is wider than the range of the sidewalk that the second moving body (for example, 200) can travel on.

[0071] According to this embodiment, the third moving body can have a higher degree of freedom in terms of the moving path compared to the second moving body.

[0072] [Item 7] A route guidance device according to any one of items 1 to 6, The providing unit (e.g., 514) The first Travel route (e.g., MR1) and the second movement path (e.g., MR2). of , together with the first required time, the second required time, and the difference, The communication device (e.g., 400) of The method is characterized in that data to be identifiably displayed on a display unit (for example, 440) is provided to the communication device.

[0073] According to this embodiment, it is possible to distinguishably display a plurality of travel routes searched by the search unit on the display unit of the communication device.

[0078] [item 8 ] Items 1 to 7 A route guidance device according to any one of the items The search unit (e.g., 512) searches for the first movement route (e.g., MR1) and the second movement route (e.g., MR2) so that the distance of the movement route from the departure point to the destination is the shortest distance.

[0079] According to this embodiment, the user can easily grasp the shortest travel route when using the first moving body and when using the second moving body.

[0080] [item 9 ] Items 1 to 7 A route guidance device according to any one of the items The acquisition unit (e.g., 511) acquires search conditions for searching for a travel route from the departure point to the destination from the communication device (e.g., 400); The search unit (for example, 512) searches for the plurality of travel routes (for example, MR1, MR2, MR3) according to the search conditions acquired by the acquisition unit.

[0081] According to this embodiment, it is possible to search for a travel route that meets the search conditions.

[0082] [item 10 ] Above items 9 The route guidance device according to The search unit (for example, 512) searches for the plurality of travel routes (for example, MR1, MR2, MR3) so that a route from the departure point to the destination includes a waypoint that corresponds to the search condition.

[0083] According to this embodiment, it is possible to search for a travel route that includes a waypoint that meets the search conditions.

[0084] [item 11 ] Items 1 to 10 A route guidance device according to any one of the items The search unit (e.g., 512) searches for the plurality of travel routes (e.g., MR1, MR2, MR3) so that a route from the departure point to the destination includes a waypoint according to the current time.

[0085] According to this embodiment, it is possible to search for a travel route that includes a waypoint according to the current time.

[0086] [item 12 ] Items 1 to 7 A route guidance device according to any one of the items The acquisition unit (e.g., 511) acquires a plurality of search conditions for searching each of the plurality of travel routes (e.g., MR1, MR2, MR3) from the communication device (e.g., 400), The search unit (for example, 512) is characterized in that it independently searches for each of the plurality of travel routes in accordance with each of the plurality of search conditions acquired by the acquisition unit.

[0087] According to this embodiment, it is possible to independently search for a plurality of travel routes according to search conditions.

[0088] [item 13 ] Items 1 to 12 A route guidance device according to any one of the items The second movement path (e.g., MR2) is characterized by being a combination of a movement path (e.g., MR21) using the user's walking and a movement path (e.g., MR22) using the second moving body (e.g., 200, 300). According to this embodiment, the user can further recognize the usefulness of using the second moving body.

[0089] According to this embodiment, the user can further recognize the usefulness of using the second moving body.

[0090] [item 14 The system of the above embodiment includes: A system (e.g., 1) having a route guidance device (e.g., 500) that guides a user along a travel route, and a communication device (e.g., 400) that can communicate with the route guidance device, an acquisition unit (e.g., 511) that acquires location information including the user's departure point and destination from the communication device; a search unit (e.g., 512) that searches for a plurality of travel routes (e.g., MR1, MR2, MR3) from the departure point to the destination based on the location information acquired by the acquisition unit; a providing unit (e.g., 514) that provides the communication device with the plurality of travel routes searched by the searching unit; and each of the plurality of travel routes includes the departure point and the destination specified by the user; The plurality of movement paths include: A first moving path (e.g., MR1) using a first riding type moving body (e.g., 100) that can travel on a roadway; a second movement path (e.g., MR2, MR3) using a second self-propelled moving body (e.g., 200, 300) that can travel on a sidewalk; Including fruit , the first moving body and the second moving body are different moving bodies, the search unit searches for the plurality of travel routes taking into consideration different travelable ranges of the first moving body and the second moving body; further comprising a calculation unit (e.g., 513) that calculates a first required time required for the first moving body to travel along the first moving path, a second required time required for the second moving body to travel along the second moving path, and a difference between the first required time and the second required time; the providing unit simultaneously provides the first moving route and the second moving route, together with the first required time, the second required time, and the difference, in a manner that allows the first moving route and the second moving route to be distinguished on a display unit of the communication device. It is characterized by:

[0091] According to this embodiment, the user can recognize the usefulness of using the second moving body compared to using the first moving body. According to this embodiment, the user can easily understand the time required when using the first moving body and the time required when using the second moving body. Furthermore, according to this embodiment, the user can easily understand the difference in the time required when using the first moving body and the second moving body.

[0092] [item 15 The route guidance method of the above embodiment includes: A route guidance method for guiding a user along a travel route, comprising: The acquisition unit: A first step of acquiring location information including a departure point and a destination point of the user from a communication device (e.g., 400); The search section a second step of searching for a plurality of travel routes from the departure point to the destination based on the location information acquired in the first step; The provision department a third step of providing the communication device with the plurality of travel routes (e.g., MR1, MR2, MR3) searched in the second step; and each of the plurality of travel routes includes the departure point and the destination specified by the user; The plurality of movement paths include: A first moving path (e.g., MR1) using a first riding type moving body (e.g., 100) that can travel on a roadway; a second movement route (e.g., MR2, MR3) using a second self-propelled moving body (e.g., 200) that can travel on a sidewalk; Including fruit , the first moving body and the second moving body are different moving bodies, In the second step, the plurality of movement paths are searched for taking into consideration different travelable ranges of the first moving body and the second moving body, a fourth step of calculating a first required time required for the first moving body to travel along the first movement path, a second required time required for the second moving body to travel along the second movement path, and a difference between the first required time and the second required time, In the third step, the first movement route and the second movement route are simultaneously displayed on a display unit of the communication device in a manner that allows identification, together with the first required time, the second required time, and the difference. It is characterized by:

[0093] According to this embodiment, the user can recognize the usefulness of using the second moving body compared to using the first moving body. According to this embodiment, the user can easily understand the time required when using the first moving body and the time required when using the second moving body. Furthermore, according to this embodiment, the user can easily understand the difference in the time required when using the first moving body and the second moving body.

[0098] The invention is not limited to the above-described embodiment, and various modifications and variations are possible within the scope of the gist of the invention. [Explanation of symbols]

[0099] 1: System 100: Public vehicle 200: Micro vehicle 300: Robot vehicle 400: Communication device 500: Route guidance device 511: Acquisition unit 512: Search unit 513: Calculation unit 514: Provision unit

Claims

1. A route guidance device that guides a user along a travel route, an acquisition unit that acquires location information including a departure point and a destination point of the user from a communication device; a search unit that searches for a plurality of travel routes from the departure point to the destination based on the location information acquired by the acquisition unit; a providing unit that provides the communication device with the plurality of travel routes searched by the searching unit; and each of the plurality of travel routes includes the departure point and the destination specified by the user; The plurality of movement paths include: a first movement path using a first riding type moving body that can travel on a roadway; a second movement path using a self-propelled second moving body capable of traveling on a sidewalk; Including, the first moving body and the second moving body are different moving bodies, the search unit searches for the plurality of travel routes taking into consideration different travelable ranges of the first moving body and the second moving body; a calculation unit that calculates a first required time required for the first moving body to travel along the first movement path, a second required time required for the second moving body to travel along the second movement path, and a difference between the first required time and the second required time, the providing unit simultaneously provides the first travel route and the second travel route, together with the first required time, the second required time, and the difference, in a distinguishable manner on a display unit of the communication device.

2. 2. The route guidance device according to claim 1, wherein the second moving body is a passenger vehicle.

3. 2. The route guidance device according to claim 1, wherein the second moving body is a non-rider type vehicle.

4. the plurality of movement routes includes a third movement route using a self-propelled third moving body that can travel on a sidewalk, the second moving body is a riding vehicle, 2. The route guidance device according to claim 1, wherein the third moving body is a non-rider type vehicle.

5. 5. The route guidance device according to claim 4, wherein the third moving body is a vehicle having at least one of a function of holding luggage of the user and a function of guiding the user to the destination.

6. 5. The route guidance device according to claim 4, wherein a range of the sidewalk in which the third moving body can travel is wider than a range of the sidewalk in which the second moving body can travel.

7. 2. The route guidance device according to claim 1, wherein the providing unit provides the communication device with data for identifiably displaying the first travel route and the second travel route, together with the first required time, the second required time, and the difference, on a display unit of the communication device.

8. The route guidance device according to claim 1 , wherein the search unit searches for the first travel route and the second travel route such that a distance from the departure point to the destination is the shortest.

9. the acquisition unit acquires, from the communication device, search conditions for searching for a travel route from the departure point to the destination; The route guidance device according to claim 1 , wherein the search unit searches for the plurality of travel routes according to the search conditions acquired by the acquisition unit.

10. 10. The route guidance device according to claim 9, wherein the search unit searches for the plurality of travel routes such that a route from the departure point to the destination includes a waypoint that meets the search conditions.

11. the acquisition unit acquires, from the communication device, a plurality of search conditions for searching for each of the plurality of travel routes; 2. The route guidance device according to claim 1, wherein the search unit independently searches for each of the plurality of travel routes in accordance with each of the plurality of search conditions acquired by the acquisition unit.

12. The route guidance device according to claim 1 , wherein the search unit searches for the plurality of travel routes such that a route from the departure point to the destination includes a waypoint according to a current time.

13. The route guidance device according to claim 1 , wherein the second moving route is a combination of a moving route using the user's walking and a moving route using the second moving object.

14. A system including a route guidance device that guides a user along a travel route, and a communication device that can communicate with the route guidance device, an acquisition unit that acquires location information including a departure point and a destination point of the user from the communication device; a search unit that searches for a plurality of travel routes from the departure point to the destination based on the location information acquired by the acquisition unit; a providing unit that provides the communication device with the plurality of travel routes searched by the searching unit; and each of the plurality of travel routes includes the departure point and the destination specified by the user; The plurality of movement paths include: a first movement path using a first riding type moving body that can travel on a roadway; a second movement path using a self-propelled second moving body capable of traveling on a sidewalk; Including, the first moving body and the second moving body are different moving bodies, the search unit searches for the plurality of travel routes taking into consideration different travelable ranges of the first moving body and the second moving body; a calculation unit that calculates a first required time required for the first moving body to travel along the first movement path, a second required time required for the second moving body to travel along the second movement path, and a difference between the first required time and the second required time, The system is characterized in that the providing unit simultaneously provides the first travel route and the second travel route, together with the first required time, the second required time, and the difference, in a manner that allows them to be identified on a display unit of the communication device.

15. A route guidance method for guiding a user along a travel route, comprising: a first step of acquiring location information including a departure point and a destination point of the user from a communication device by an acquisition unit; a second step in which a search unit searches for a plurality of travel routes from the departure point to the destination based on the location information acquired in the first step; a third step in which a providing unit provides the plurality of travel routes searched in the second step to the communication device; and each of the plurality of travel routes includes the departure point and the destination specified by the user; The plurality of movement paths include: a first movement path using a first riding type moving body that can travel on a roadway; a second movement path using a self-propelled second moving body capable of traveling on a sidewalk; Including, the first moving body and the second moving body are different moving bodies, In the second step, the plurality of movement paths are searched for, taking into consideration different travelable ranges of the first moving body and the second moving body; a fourth step of calculating a first required time required for the first moving body to travel along the first movement path, a second required time required for the second moving body to travel along the second movement path, and a difference between the first required time and the second required time, In the third step, the first travel route and the second travel route, together with the first required time, the second required time, and the difference, are simultaneously provided in a distinguishable manner on a display unit of the communication device.

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