Information providing device, information providing method and information providing program

Abstract

To provide an information providing device, an information providing method and an information providing program, capable of facilitating an entry to a road on which a vehicle should travel even by guide using voice or the like.SOLUTION: An information providing device includes a route search unit 1 that acquires road data 23a and intersection data 23b, and a guide voice generation unit 2 that outputs a facilitating guide voice for traveling on a wide road so as to facilitate an entry from the wide road to a narrow road, while travelling on the wide road, on the basis of the acquired road data 23a and the like.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] This application belongs to the technical field of information providing devices, information providing methods, and information providing programs. More specifically, it belongs to the technical field of information providing devices and information providing methods for providing information for guiding the movement of moving bodies such as vehicles, and programs for such information providing devices.

Background Art

[0002] In recent years, as a navigation device for guiding the movement of the above-mentioned moving body, in addition to the conventionally generalized in-vehicle navigation device, research and development on a navigation system that utilizes a portable terminal device such as a smartphone has been actively carried out.

[0003] At this time, when utilizing the above-mentioned portable terminal device, due to limitations such as the size of the display provided therein, guidance using sound including guidance voice becomes important. As a document disclosing a prior art corresponding to such a background, for example, the following Patent Document 1 can be cited. In the prior art disclosed in this Patent Document 1, for example, another intersection having a road structure similar to the road structure of the intersection to be guided is detected, and the fact is voice-guided as caution information.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, even with the prior art described in Patent Document 1 above, for example, when the moving body is a vehicle or the like, there is a trunk road in front of the entrance to the road to be entered, and furthermore, when the width of the road to be entered is narrower than the width of the road currently being traveled, there is a problem that the vehicle may pass by the entrance to the road to be entered.

[0006] Therefore, the present application has been made in view of the above problems, and an example of its problem is to provide an information providing device, an information providing method, and a program for the information providing device that can facilitate entry into a road to be entered even by guidance using voice or the like.

Means for Solving the Problem

[0007] In order to solve the above problems, the invention according to claim 1 includes an acquisition means for acquiring first mode information indicating a mode of a first moving path and second mode information indicating a mode of a second moving path, respectively, and based on the acquired first mode information and second mode information, guidance information for prompting a driving operation that facilitates entry from the first moving path to the second moving path is output by sound during movement on the first moving path, and the first mode information and the second mode information are configured to be information indicating the visibility of the second moving path when viewed from the first moving path.

[0008] In order to solve the above problems, the invention according to claim 6 is an information providing method executed in an information providing device including an acquisition means and an output means, the method including an acquisition step of acquiring, by the acquisition means, first mode information indicating a mode of a first moving path and second mode information indicating a mode of a second moving path, respectively, and an output step of outputting, by the output means, by sound, guidance information for prompting a driving operation that facilitates entry from the first moving path to the second moving path during movement on the first moving path based on the acquired first mode information and second mode information, and the first mode information and the second mode information are configured to be information indicating the visibility of the second moving path when viewed from the first moving path.

[0009] In order to solve the above problems, the invention according to claim 7 causes a computer to function as an acquisition means for acquiring first mode information indicating a mode of a first travel route and second mode information indicating a mode of a second travel route, respectively, and an output means for outputting, by sound during movement on the first travel route, guidance information for prompting a driving operation that facilitates entry from the first travel route to the second travel route based on the acquired first mode information and second mode information, wherein the first mode information and the second mode information are configured to be information indicating the visibility of the second travel route when viewed from the first travel route. BRIEF DESCRIPTION OF THE DRAWINGS

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

[0011] Next, a mode for carrying out the present application will be described with reference to FIG. 1. Note that FIG. 1 is a block diagram showing an outline configuration of an information providing apparatus according to an embodiment.

[0012] As shown in FIG. 1, an information providing apparatus S according to an embodiment includes an acquisition means 1 and an output means 2.

[0013] In this configuration, the acquisition means 1 acquires first mode information indicating the mode of the first movement path and second mode information indicating the mode of the second movement path, respectively.

[0014] Then, the output means 2 outputs, by sound during the movement of the first movement path, guidance information for moving the first movement path so that it is easier to enter from the first movement path to the second movement path, based on the first mode information and the second mode information acquired by the acquisition means 1.

[0015] As described above, according to the operation of the information providing apparatus S of the embodiment, guidance information for moving the first movement path so that it is easier to enter from the first movement path to the second movement path is output by sound during the movement of the first movement path based on the first mode information and the second mode information. Therefore, even by guidance by sound, it is possible to facilitate entry into the second movement path.

Example

[0016] Next, specific examples corresponding to the above-described embodiment will be described with reference to FIGS. 2 to 5. The examples described below are examples when the present application is applied to route guidance using sound (voice) in a navigation system including a terminal device and a server that are connected to be able to exchange data with each other via a network such as the Internet.

[0017] FIG. 2 is a block diagram showing an outline configuration of the navigation system of the example, FIG. 3 is a block diagram showing an outline configuration of the terminal device and the like of the example, FIG. 4 is a flowchart showing the navigation process of the example, and FIG. 5 is a conceptual diagram for explaining the navigation process of the example. At this time, in FIG. 3, for a part of the constituent members of the example corresponding to the constituent members in the information providing apparatus S according to the embodiment shown in FIG. 1, the same member numbers as those of the constituent members in the information providing apparatus S are used.

[0018] As shown in FIG. 2, the navigation system SS of the embodiment includes one or more terminal devices T1, T2, T3, …, Tn (n is a natural number), each of which is operated inside the vehicle by a passenger of the vehicle (more specifically, the driver or a passenger of the vehicle), which is an example of a moving body, a server SV, and a network NW such as the Internet that enables data transfer between the terminal devices T1, T2, T3, …, Tn and the server SV. In the following description, when describing the common configuration and the like of the terminal devices T1 to Tn, these are collectively referred to as the "terminal device T". At this time, the terminal device T is specifically realized as, for example, a so-called smartphone or a tablet-type terminal device. Further, in the following description, an embodiment will be described for the case where the passenger using the terminal device T is on board the vehicle.

[0019] In this configuration, each terminal device T separately exchanges various data with the server SV via the network NW and guides the movement of the passenger using each terminal device T. The data exchanged at this time includes search data for searching for the route along which the vehicle should move and guidance data after starting to move along the searched route. Further, due to limitations in the size of the display provided in the terminal device T, limitations in processing load, or to avoid screen gazing, the guidance for the movement of the passenger in the navigation system SS is mainly performed using voice or sound. For this reason, the guidance data transmitted from the server SV to each terminal device T includes voice data for guidance by the above voice or sound. In the following description, the voice data for guidance is simply referred to as "guidance voice data".

[0020] Next, the configurations and operations of each terminal device T and the server SV will be described with reference to FIG. 3. First, as shown in FIG. 3(a), each of the terminal devices T in the embodiment includes an interface 5, a processing unit 6 composed of a CPU, a RAM (Random Access Memory), a ROM (Read Only Memory), etc., a memory 7 including a volatile area and a non-volatile area, an operation unit 8 composed of a touch panel and operation buttons, etc., a speaker 9, a sensor unit 10 composed of a GPS (Global Positioning System) sensor and / or an autonomous sensor, etc., and a display 11 composed of a liquid crystal or an organic EL (Electro Luminescence) display, etc. Further, the processing unit 6 includes a route search unit 6a and a guidance voice output control unit 6b. At this time, the route search unit 6a and the guidance voice output control unit 6b may each be realized by a hardware logic circuit including the above CPU, etc., which constitutes the processing unit 6, or may be realized software-wise by the CPU, etc. reading out and executing a program corresponding to a flowchart showing the processing as the terminal device T among the navigation processes of the embodiment described later.

[0021] In the above configuration, the interface 5 controls the exchange of data with the server SV via the network NW under the control of the processing unit 6. On the other hand, the sensor unit 10 uses the GPS sensor and / or the self-positioning sensor, etc., to generate sensor data indicating the current position, moving speed, moving direction, etc. of the terminal device T (in other words, the current position, moving speed, moving direction, etc. of the passenger operating the terminal device T or the vehicle in which the passenger is riding), and outputs it to the processing unit 6. The route search unit 6a transmits, as search data, the sensor data and the destination data input from the operation unit 8 (i.e., the destination data indicating the destination to which the vehicle in which the passenger operating the terminal device T is riding should move) to the server SV via the interface 5 and the network NW under the control of the processing unit 6. Thereafter, the route search unit 6a acquires route data indicating the search result of the route from the current position indicated by the sensor data to the destination indicated by the destination data via the network NW and the interface 5.

[0022] Thereafter, the processing unit 6 uses the acquired route data to guide the movement of the vehicle along the searched route while exchanging the guidance data (including the sensor data at that time) with the server SV. At this time, the guidance voice output control unit 6b outputs (plays) the guidance voice corresponding to the guidance voice data included in the guidance data acquired from the server SV via the network NW and the interface 5 to the passenger via the speaker 9.

[0023] In parallel with these, when an input operation of data necessary for guiding the vehicle including the above destination is performed on the operation unit 8, the operation unit 8 generates an operation signal (including the above destination data) corresponding to the input operation and transmits it to the processing unit 6. Thus, the processing unit 6 executes the processing as the terminal device T in the navigation processing of the embodiment while controlling the route search unit 6a and the guidance voice output control unit 6b. At this time, the processing unit 6 executes the processing while temporarily or non-volatilely storing the data necessary for the processing in the memory 7. Further, a guidance image or the like as the execution result of the processing is displayed on the display 11.

[0024] On the other hand, as shown in FIG. 3(b), the server SV of the embodiment is composed of an interface 20, a processing unit 21 including a CPU, a RAM, a ROM, etc., and a recording unit 22 composed of an HDD (Hard Disc Drive) or an SSD (Solid State Drive), etc. Further, the processing unit 21 is configured to include a route setting unit 1 and a guidance voice generation unit 2. At this time, the route setting unit 1 and the guidance voice generation unit 2 may each be realized by a hardware logic circuit including the above CPU, etc. that constitutes the processing unit 21, or may be realized software-wise by the CPU, etc. reading out and executing a program corresponding to a flowchart showing the processing as the server SV among the navigation processes of the embodiment described later. And, the above route search unit 1 corresponds to an example of the acquisition means 1 of the embodiment, and the above guidance voice generation unit 2 corresponds to an example of the output means 2 of the embodiment. Also, as shown by the broken line in FIG. 3(b), the above route search unit 1 and guidance voice generation unit 2 constitute an example of the information providing device S of the embodiment.

[0025] In the above configuration, in the recording unit 22, navigation data 23 such as map data and the above guidance voice data necessary for guiding the movement of each vehicle in which a passenger using each terminal device T connected to the server SV via the network NW is riding is recorded non-volatilely. And, in the above map data of the navigation data 23, as shown in FIG. 3(b), road data 23a and intersection data 23b respectively used for route search and route guidance are included.

[0026] At this time, as illustrated in FIG. 3(c), the road data 23a is data in which, for each road included in the above map data, position information indicating its position by latitude data and longitude data, width information indicating its road width (width) in, for example, meter units, and lane information indicating the number of lanes constituting it, etc. are recorded in association with a road ID for identifying the road from other roads.

[0027] On the one hand, as illustrated below FIG. 3(c), for each intersection included in the above map data, the intersection data 23b is data in which position information indicating its position by latitude data and longitude data and road IDs indicating each road intersecting at the intersection are recorded in association with an intersection ID for identifying the intersection from other intersections.

[0028] On the other hand, the interface 20 controls the transfer of data between each terminal device T via the network NW under the control of the processing unit 21. Further, under the control of the processing unit 21, the route setting unit 1 searches for the above route to the destination indicated by the destination data using the navigation data 23 based on the above destination data and the sensor data acquired from any one of the terminal devices T, and transmits the route data indicating the search result to the terminal device T that has transmitted the destination data and the sensor data. Thereby, route guidance based on the above route data is performed on the terminal device T.

[0029] Then, during the above guidance, the guidance voice generation unit 2 generates the above guidance voice data in accordance with the guidance timing on the above route, and transmits it to the terminal device T used by the passenger of the vehicle to be guided via the interface 20 and the network NW. Thereby, the guidance voice corresponding to the above guidance voice data is output (played) to the above passenger via the speaker 9 of the terminal device T.

[0030] Next, the navigation processing of the embodiment executed in the navigation system of the embodiment having the above-described configuration and functions will be specifically described with reference to FIGS. 3 to 5.

[0031] The navigation process of the embodiment starts, for example, when a guidance instruction operation or the like indicating that movement along the route of the vehicle to be guided (hereinafter simply referred to as the "target vehicle") should be guided is executed on the operation unit 8 of the terminal device T of the embodiment used by the passenger on board the target vehicle. In the following description, the terminal device T is appropriately referred to as the "target terminal device T". Then, as shown in the corresponding flowchart in FIG. 4, when the guidance instruction operation is performed on the operation unit 8 of the target terminal device T, the route search unit 6a of the processing unit 6 of the terminal device T exchanges the search data including the destination data and the route data with the route search unit 1 of the server SV, and searches for the route along which the target vehicle should move (step S1). At this time, the route search unit 1 of the server SV always waits for the transmission of the search data from any of the terminal devices T connected to the server SV via the network NW at that time. And when the search data is transmitted from the target terminal device T, the route search unit 1 performs a route search based on the destination data and the like included in the search data, and transmits the route data as the search result to the route search unit 6a of the target terminal device T via the network NW (step S15).

[0032] Thereafter, when the guidance of movement along the route is started by an operation such as an operation to start movement on the operation unit 8 of the target terminal device T, the processing unit 6 of the target terminal device T and the processing unit 21 of the server SV exchange the guidance data including the sensor data via the network NW at that time, and start the guidance along the route searched in step S1 and step S15 (step S2, step S16).

[0033] On the other hand, during the guidance of the route started in step S15 (i.e., during the movement of the vehicle in which the passenger using the target terminal device T is riding), the guidance voice generation unit 2 of the server SV monitors whether there is an intersection to be guided on the set route (step S17). In the monitoring of step S17, if there is no intersection to be guided (step S17: NO), the processing unit 21 proceeds to step S20 described later. On the other hand, in the monitoring of step S17, if there is an intersection to be guided (step S17: YES), next, the guidance voice generation unit 2 determines whether the timing for guiding the intersection to be guided by voice has arrived, based on the sensor data (particularly, the data indicating the current position of the target terminal device T) included in the above guidance data (step S18). Here, as the timing of the voice guidance in step S18, for example, the timing after passing (or immediately after passing) an intersection one before the intersection to be guided detected in the monitoring of step S17 on the above route can be mentioned. In the determination of step 18, if the timing of the voice guidance has not arrived (step S18: NO), the processing unit 21 proceeds to step S20 described later.

[0034] On the other hand, in the determination of step S18, when the timing for performing guidance for the intersection to be guided (refer to step S17: YES) arrives (step S18: YES), the guidance voice generation unit 2 generates guidance voice data having the content to be guided for the intersection (for example, "Turn left at the next ○○ intersection.", etc.), and transmits the generated guidance voice data to the target terminal device T via the network NW (step S19). At this time, the guidance voice generation unit 2 refers to the road data 23a and the intersection data 23b, and when the width of the road to enter through the intersection detected in the monitoring of step S17 is narrower than the width of the road on which the vehicle is moving before entering the intersection, the guidance voice generation unit 2 generates facilitation guidance voice data of an example for facilitating the entry into the road to enter through the intersection, and in addition to the above guidance voice data, transmits it to the target terminal device T via the network NW (step S19). Here, examples of the facilitation guidance voice corresponding to the facilitation guidance voice data include facilitation guidance voices such as "Please proceed slowly until the next ○○ intersection." and facilitation guidance voices such as "The next ○○ intersection is a left (right) turn. Please proceed in the left (right) lane." Note that any one of these facilitation guidance voices may be used, or facilitation guidance voice data corresponding to both may be transmitted to the target terminal device T. In FIG. 4, the case where only the above guidance voice data is transmitted in step S19 and the case where the facilitation guidance voice data is transmitted together are collectively shown as "guidance voice data", "guidance voice data transmission (step S19)", and "guidance voice data reception (step S3)".

[0035] Thereafter, the processing unit 21 determines whether to end the route guidance as the navigation processing of the embodiment due to reasons such as the target vehicle reaching its destination (step S20). In the determination of step S20, when the route guidance is not ended (step S20: NO), the processing unit 21 returns to step S17 and continues to perform the route guidance. On the other hand, in the determination of step S20, when the route guidance is ended (step S20: YES), the processing unit 21 ends the route guidance as it is.

[0036] On the one hand, after the guidance starts in step 2 above, the guidance voice output control unit 6b of the target terminal device T waits for the transmission of the above guidance voice data (or the above guidance voice data and the simplified guidance voice data; hereinafter referred to as "guidance voice data, etc.") from the server SV (step S3). If the guidance voice data, etc. is not transmitted during the waiting in step S3 (step S3: NO), the processing unit 6 of the target terminal device T proceeds to step S5 described later.

[0037] On the other hand, if the guidance voice data, etc. is received from the server SV during the waiting in step S3 (step S3: YES), the guidance voice output control unit 6b of the target terminal device T outputs (plays) the guidance voice (or guidance voice and simplified guidance voice) corresponding to the received guidance voice data, etc. via the speaker 9 (step S4). Thereafter, the processing unit 6 of the target terminal device T determines whether to end the route guidance as the navigation processing of the embodiment for the same reason as in step S20 above, for example (step S5). In the determination in step S5, if the route guidance is not ended (step S5: NO), the processing unit 6 returns to step S3 above and continues the route guidance. On the other hand, in the determination in step S5, if the route guidance is to be ended (step S5: NO), the processing unit 6 ends the route guidance as it is.

[0038] Here, the output (playback) of the guidance voice, etc. when the navigation processing of the embodiment is executed in the server SV and the target terminal device T will be specifically described with reference to FIG. 5. Note that FIG. 5 is a conceptual diagram for explaining the navigation processing of the embodiment.

[0039] That is, in FIG. 5, it is assumed that a two-lane road R1 on one side intersects a four-lane arterial road R4 at an intersection CR1 in a T-shape. On the other hand, the road R1 intersects a two-lane road R2 at an intersection CR2 before reaching the intersection CR1. Further, it is assumed that it is necessary to turn left from the road R1 at an intersection CR3 onto a one-lane road R3 on one side leading to the destination G of the target vehicle C. Here, it is assumed that the width of the road R1 > the width of the road R3. And the information indicating the width is pre-recorded in the server SV as the above road data 23a, and further, the information indicating the roads (roads R1, etc.) intersecting at each intersection (intersection CR, etc.) is pre-recorded in the server SV as the above intersection data 23b.

[0040] When the navigation process of the embodiment is executed in the case illustrated in FIG. 5 as described above, the target vehicle C moving along the route guidance to the destination G (see steps S2 and S16 in FIG. 4) passes through the intersection CR2 before the intersection CR3 where it should turn left from the position of the white △ mark in front of the intersection CR2 to the position of the hatched △ mark after passing through the intersection CR2 one intersection before the intersection CR3 (see step S18: YES in FIG. 4). At this timing, the guidance voice GV including the facilitation guidance voice illustrated in FIG. 5 is output (played) from the speaker 9 of the target terminal device T (see steps S19 and S4 in FIG. 4). Thereby, even when the passenger using the target terminal device T enters from the wide road R1 to the narrow road R3, the passenger can surely enter the road R3 without overlooking the entrance to the road R3.

[0041] As described above, according to the navigation process according to the embodiment, the guidance voice GV including the facilitation guidance voice for moving so as to facilitate the entry from the wide road to the narrow road is output (played) by sound while moving on the wide road based on the road data 23a and the intersection data 23b (see steps S19 and S4 in FIG. 4). Therefore, the entry to the narrow road can also be facilitated by the sound guidance.

[0042] In addition, information indicating the width of each road is recorded as road data 23a, and based on these, facilitation guidance voice data is generated. Therefore, even through voice guidance, it is possible to facilitate entry into narrower roads according to the width of each road.

[0043] Furthermore, as illustrated in FIG. 5, when guiding from a wide road to a narrow road, the facilitation guidance voice is output (played). Therefore, even through voice guidance, it is possible to facilitate entry from a wide road to a narrow road.

[0044] Moreover, when a facilitation guidance voice indicating that the speed should be reduced until reaching the position of the entrance to the narrow road is output (played), even through voice guidance, it is possible to surely facilitate entry into the narrow road.

[0045] Also, even when a facilitation guidance voice indicating that lane change should be made to the lane to be moved when entering the narrow road is output (played), it is possible to surely facilitate entry into the narrow road.

[0046] Furthermore, when a guidance voice GV including a facilitation guidance voice is output (played) after passing through the position of intersection CR2 before reaching the position of the entrance to the narrow road (for example, intersection CR3 illustrated in FIG. 5), even through voice guidance, it is possible to further facilitate entry into the narrow road.

[0047] In addition, in the navigation process of the above-described embodiment, the configuration is such that the easy guidance voice is output (played) according to the width of the road. However, in addition to this, the easy guidance voice of the embodiment may be output (played) according to the visibility of the entrance to the road to be entered when viewed from the currently traveled road. Here, the quality of the visibility refers to, for example, when the entrance at the intersection to the road to be entered through a certain intersection is difficult to see because it is in the vegetation or the shadow of a large building beside the intersection, the visibility is poor. In this case, as the intersection data 23b of the embodiment, the quality of the visibility of other roads viewed from any of the roads intersecting at the intersection is recorded in advance. When the movement of entering a road with poor visibility at the intersection is included in the route to be guided, it is preferable to output (play) the easy guidance voice of the embodiment. Further, when the target vehicle is equipped with a sensor (for example, a sensor such as a LiDAR (Light Detection and Ranging) system) that three-dimensionally detects the situation around the target vehicle, based on the detection result by the sensor, it may be determined in the server SV whether it is an intersection where the easy guidance voice of the embodiment should be output (played).

[0048] Even in the case of determining whether to output (play) the easy guidance voice according to the quality of the visibility of the entrance as described above, the entrance to the road planned to be entered can be facilitated by the guidance by sound. Further, according to the configuration of outputting (playing) the easy guidance voice when the visibility of the entrance is poor, the entrance to the road with poor visibility can be facilitated by the guidance by sound.

[0049] Furthermore, in the navigation process of the above-described embodiment, the monitoring of the intersection to be guided (see step S17 in FIG. 4) and the determination of the arrival of the guidance timing for the intersection to be guided (see step S18 in FIG. 4) are performed by the processing unit 21 of the server SV. However, in addition to this, the monitoring of the intersection to be guided and the determination of the arrival of the guidance timing may be configured to be performed by the target terminal device T. In this case, it is preferable to have only the search for the route along which the target vehicle moves executed by an external server. Also in this case, similar to the navigation process of the embodiment, guidance by sound can also facilitate entry into a narrow road or a road with poor visibility at the entrance to that road.

[0050] Furthermore, instead of or in combination with the above width information, the speed limit set for the road (or the average speed of that road obtained from so-called probe information) may be used to configure the output (playback) of guidance voice for facilitation. More specifically, when entering a road with a lower set speed limit from a road with a higher set speed limit, since there is a high possibility of passing through the entrance, it is preferable to configure the output (playback) of guidance voice for facilitation such as indicating to reduce the speed at a position before the entrance.

[0051] Also, programs corresponding to each flowchart shown in FIG. 4 are recorded on a recording medium such as an optical disk or a hard disk, or obtained via a network such as the Internet, and read and executed by a general-purpose microcomputer or the like, thereby enabling the general-purpose microcomputer or the like to function as the processing unit 6 or the processing unit 21 according to the embodiment.

Explanation of Reference Numerals

[0052] 1 Acquisition means (route search unit) 2 Output means (guidance voice generation unit) 6, 21 Processing unit 6b Guidance voice output control unit 9 Speaker 23a Road data 23b Intersection Data S Information Providing Device T, T1, T2, T3, Tn Terminal Devices SV Server GV Guidance Voice

Claims

1. An acquisition means for respectively acquiring first mode information indicating a mode of a first travel route and second mode information indicating a mode of a second travel route; An output means for outputting, by sound during movement on the first travel route, guidance information for prompting a driving operation that facilitates entry from the first travel route to the second travel route based on the acquired first mode information and second mode information; Comprising; The information providing device, wherein the first mode information and the second mode information are information indicating the visibility of the second travel route when viewed from the first travel route.

2. In the information providing device according to claim 1, The output means outputs the guidance information when an entrance from the first travel route to the second travel route cannot be visually recognized from the first travel route before reaching the position of the entrance. The information providing device characterized by the above.

3. In the information providing device according to claim 1 or claim 2, The guidance information is guidance information to slow down the speed until reaching the position of the entrance from the first travel route to the second travel route. The information providing device characterized by the above.

4. In the information providing device according to any one of claims 1 to 3, The first travel route is a road consisting of a plurality of lanes, The guidance information is guidance information to change lanes to the lane to be moved when entering from the first travel route to the second travel route. The information providing device characterized by the above.

5. In the information providing device according to any one of claims 1 to 4, The output means outputs the guidance information at a position before reaching the position of the entrance to the second travel route and after passing the position where the moving speed should be reduced. The information providing device characterized by the above.

6. An information providing method executed in an information providing device including an acquisition means and an output means, An acquisition step of respectively acquiring, by the acquisition means, first mode information indicating a mode of a first travel route and second mode information indicating a mode of a second travel route; An output step of outputting, by sound by the output means during movement on the first travel route, guidance information for prompting a driving operation that facilitates entry from the first travel route to the second travel route based on the acquired first mode information and second mode information; Including, The information providing method, wherein the first mode information and the second mode information are information indicating the visibility of the second travel route when viewed from the first travel route.

7. A computer, An acquisition means for acquiring first mode information indicating the mode of the first movement path and second mode information indicating the mode of the second movement path, respectively, and An output means for outputting, by sound, guidance information for prompting a driving operation that facilitates entry from the first movement path to the second movement path based on the acquired first mode information and second mode information while moving on the first movement path, An information-providing program that functions as An information-providing program, wherein the first mode information and the second mode information are information indicating the visibility of the second movement path when viewed from the first movement path.

Images