WO2022013969A1

WO2022013969A1 - Guidance information presentation device, guidance information presentation method, and guidance information presentation program

Info

Publication number: WO2022013969A1
Application number: PCT/JP2020/027497
Authority: WO
Inventors: 真一郎永徳; 充望月; 治松田
Original assignee: 日本電信電話株式会社
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2022-01-20

Abstract

This guidance information presentation device for presenting route guidance information to a user is provided with: a route information generation unit; a browsing history information recording unit; and a guidance information determination unit. The route information generation unit acquires a start point and a destination, and generates route information that includes a route from the start point to the destination and, for each of a plurality of landmarks on the route, the position of the land mark and landmark information indicating the direction in which the user proceeds. The browsing history recording unit records browsing history information of the user for route guidance information in the past presented to the user. The guidance information determination unit determines route guidance information to be presented to the user on the basis of the browsing history information of the user recorded by the browsing history information recording unit and the route information generated by the route information generation unit.

Description

Guidance information presentation device, guidance information presentation method and guidance information presentation program

One aspect of the present invention relates to a guidance information presentation device, a guidance information presentation method, and a guidance information presentation program.

Various devices have been proposed that present the route to the destination to the user.

For example, Patent Document 1 proposes a technique for presenting information by rearranging the text order so that it is easy to understand even with voice information in the route guidance.

Japanese Patent Application Laid-Open No. 2019-101020

The technique of Patent Document 1 does not take into consideration the difference in the method of understanding the geographic space possessed by each user. Therefore, the number of times the information is presented to the user who only needs to notify the entire route increases, which is a burden on the user, or the information is excessively presented to the user who wants to know only the latest route, and the user understands. It may take some time.

The present invention has been made by paying attention to the above circumstances, and an object thereof is to create route guidance information optimized for each user based on browsing history information of past route guidance information of each user. It is an object of the present invention to provide a guidance information presentation device, a guidance information presentation method, and a guidance information presentation program to enable presentation.

In order to solve the above problems, the guidance information presenting device according to one aspect of the present invention acquires a starting point and a destination, a route from the starting point to the destination, and each land of a plurality of landmarks on the route. For the mark, the route information generation unit that generates route information including the position of the landmark and the landmark information indicating the direction in which the user travels at the landmark, and the user regarding the past route guidance information presented to the user. Route guidance presented to the user based on the browsing history information recording unit that records browsing history information, the user's browsing history information recorded in the browsing history information recording unit, and the route information generated by the route information generation unit. It is provided with a guidance information determination unit that determines information.

According to one aspect of the present invention, by determining the route guidance information based on the browsing history information of the past route guidance information of each user, the guidance that can present the optimized route guidance information to each user can be presented. An information presentation device, a guidance information presentation method, and a guidance information presentation program can be provided.

FIG. 1 is a block diagram showing an example of a configuration of a guidance information presentation system including a guidance information presentation device according to an embodiment of the present invention. FIG. 2 is a block diagram showing an example of the hardware configuration of the mobile terminal in FIG. 1. FIG. 3 is a block diagram showing an example of a hardware configuration of a guidance server in FIG. 1 as a guidance information presenting device according to an embodiment of the present invention. FIG. 4 is a block diagram showing a functional configuration of a mobile terminal and a guidance server. FIG. 5 is a diagram showing an example of browsing history information recorded in the browsing record database in FIG. 1. FIG. 6 is a diagram showing an example of designated landmark setting. FIG. 7 is a diagram showing an example of additional landmark setting. FIG. 8 is a diagram showing an example of determining the particle size of the landmark information presented to the user. FIG. 9 is a diagram showing an example of determining the particle size of the landmark information presented to the user. FIG. 10 is an operation flowchart of the mobile terminal. FIG. 11 is an operation flowchart of the guidance server. FIG. 12 is a sequence diagram showing data communication for determining route guidance information and presenting the user in the guidance information presentation system. FIG. 13 is a sequence diagram showing data communication for recording browsing history information of route guidance information in the guidance information presentation system. FIG. 14 is a diagram showing an example of a route for explaining an example of a method of presenting landmark information.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings.
[Premise]
Here, it is assumed that the guidance information presenting device operates under the following assumptions.
(1) The user is requesting directions from a certain position to the destination (2) The user is carrying a mobile terminal on which the directions program is installed (3) The directions program is to the destination Guidance is provided by presenting how the user should follow the route (turn left / straight / right) at the position of each landmark on the route [Definition of terms]
(1) "Landmark" means a designated landmark or an additional landmark.
(2) The "designated landmark" is a point set by the system administrator as a mark for understanding the guided path for the user. Designated landmarks include, for example, characteristic buildings and points with intersections.
(3) The "additional landmark" is determined to be a point other than the designated landmark, which is automatically set by the system and serves as a mark for the user to understand the guided route. Additional landmarks are set at fixed distance intervals set by the system administrator, for example, on long straight paths.

[composition]
(1) Hardware Configuration FIG. 1 is a block diagram showing an example of a configuration of a guidance information presentation system including a guidance information presentation device according to an embodiment of the present invention. This system includes a mobile terminal 10 such as a smartphone carried by a user, and a guidance server 20 as a guidance information presenting device according to an embodiment of the present invention. The mobile terminal 10 and the guidance server 20 are connected via the network 30. The guidance server 20 includes a browsing record database 21. In FIG. 1, "network" is described as "NW". Further, in FIG. 1 and other figures described later, the "database" is described as "DB". Although only one mobile terminal 10 is shown in FIG. 1 for the sake of simplification of the drawing, the guidance information presentation system may include a large number of mobile terminals.

The data recorded in the browsing record database 21 will be described in the functional configuration described later.

The network 30 is composed of an IP network including the Internet and an access network for accessing this IP network. As the access network, for example, a public wired network, a mobile phone network, a wired LAN (Local Area Network), a wireless LAN, a CATV (Cable Television), or the like is used.

FIG. 2 is a block diagram showing an example of the hardware configuration of the mobile terminal 10.

The mobile terminal 10 has, for example, a hardware processor 101 such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The program memory 102, the data memory 103, the communication interface 104, and the input / output interface 105 are connected to the processor 101 via the bus 106.

The program memory 102 is used as a storage medium in combination with, for example, a non-volatile memory such as EPROM (ErasableProgrammableReadOnlyMemory) that can be written and read at any time and a non-volatile memory such as ROM (ReadOnlyMemory). be able to. The program memory 102 stores programs necessary for executing various processes, including a route guidance program. That is, any of the processing function units in each part of the function configuration described later can be realized by reading and executing the program stored in the program memory 102 by the processor 101.

The data memory 103 is a storage used as a storage medium by combining, for example, a non-volatile memory such as a memory card that can be written and read at any time and a volatile memory such as a RAM (RandomAccessMemory). The data memory 103 is used to store data acquired and created in the process in which the processor 101 executes a program and performs various processes.

The communication interface 104 can include one or more wired or wireless communication modules. For example, the communication interface 104 includes a wireless communication module utilizing short-range wireless technology such as Bluetooth®. Further, the communication interface 104 includes, for example, a wireless communication module that wirelessly connects to a Wi-Fi access point or a mobile phone base station. This wireless communication module is connected to the network 30 via a Wi-Fi access point or a mobile phone base station under the control of the processor 101, and is connected to various server devices including the guidance server 20 and other information processing devices. It is possible to communicate with and send and receive various information.

The input / output interface 105 is an interface with the user interface device 107 and various sensors. In FIG. 2, the "user interface" is described as "user IF".

The user interface device 107 includes an input device 1071 and an output device 1072. The output device 1072 is a display device using, for example, a liquid crystal display, an organic EL (ElectroLuminescence), or the like, and displays an image corresponding to a signal input from the input / output interface 105. The input device 1071 is an input detection sheet that employs an electrostatic method or a pressure method and is arranged on the display screen of the display device that is the output device 1072, and the user's touch position is set by the processor 101 via the input / output interface 105. Output to.

The sensor includes, for example, a GPS (Global Positioning System) receiver 108 for detecting the position of the mobile terminal 10. The processor 101 can also acquire the position information of the mobile terminal 10 by using the Wi-Fi access point used by the communication interface 104, the signal strength of the mobile phone wireless base station, the Bluetooth beacon, or the like. be. Therefore, the mobile terminal 10 does not have to be provided with the GPS receiver 108.

FIG. 3 is a block diagram showing an example of the hardware configuration of the guidance server 20.

The guidance server 20 is made of, for example, a PC (Personal Computer) or the like, and has, for example, a hardware processor 201 such as a CPU or an MPU. The program memory 202, the data memory 203, and the communication interface 204 are connected to the processor 201 via the bus 205.

The program memory 202 is used as a storage medium in combination with, for example, a non-volatile memory such as an HDD (Hard Disk Drive) or SSD (Solid State Drive) that can be written and read at any time, and a non-volatile memory such as a ROM. be able to. The program memory 202 stores programs necessary for executing various processes, including a guidance information presentation program according to an embodiment of the present invention. That is, any of the processing function units in each unit of the function configuration as described later can be realized by reading and executing the program stored in the program memory 202 by the processor 201. Part or all of these processing function units include integrated circuits such as integrated circuits (ASIC: Application Specific Integrated Circuits), DSPs (Digital Signal Processors), and FPGAs (Field-Programmable Gate Arrays) for specific applications. , May be realized in various other formats.

The data memory 203 is a storage that uses a combination of a non-volatile memory such as an HDD or SSD that can be written and read at any time and a volatile memory such as a RAM as a storage medium. The data memory 203 is used to store data acquired and created in the process in which the processor 201 executes a program and performs various processes. The browsing record database 21 can be stored in the data memory 203.

The communication interface 204 can include one or more wired or wireless communication modules for connecting to the network 30.

Although not shown in particular, the guidance server 20 may also have an input / output interface. The input / output interface includes an input device such as a keyboard and a pointing device for the administrator of the guidance server 20 to input an instruction to the processor 201, and a display for displaying output data to be presented to the administrator from the processor 201. Output device can be connected to the processor 201. The instruction input to the processor 201 and the display of the output data from the processor 201 can also be performed by an information processing device of an administrator (not shown) via the network 30.

(2) Functional configuration FIG. 4 is a block diagram showing a functional configuration of the mobile terminal 10 and the guidance server 20.

The mobile terminal 10 includes a user interface unit 11 and a control unit 12. The user interface unit 11 can be realized by the input / output interface 105, the user interface device 107, and the GPS receiver 108 in the configuration of FIG. Further, the control unit 12 can be realized by using the data memory 103 and the communication interface 104 by the processor 101 in the configuration of FIG. 2 reading and executing the route guidance program stored in the program memory 102. It is a processing function unit. The control unit 12 includes a route search start point / end point input unit 13, an information acquisition unit 14, and a browsing operation recording unit 15.

The route search start point / end point input unit 13 acquires the start point, which is the start point, and the end point, which is the destination, of the route desired by the user for the route guidance input by the user from the user interface unit 11. The start point and end point may be arbitrary positions. The route search start point / end point input unit 13 transmits the acquired route start point and end point to the guidance server 20.

The information acquisition unit 14 receives the route guidance information from the guidance server 20. The information acquisition unit 14 causes the user interface unit 11 to present the route guidance information of the route guidance provided by the route guidance program based on the received route guidance information.

The browsing operation recording unit 15 detects that the user has performed a browsing operation of the route guidance information presented to the user interface unit 11 during the route guidance. The presence or absence of this browsing operation can be detected by detecting that the route guidance program is started, that the route guidance program has changed from the background to the foreground in the mobile terminal 10, that the user has stopped on the route at the time of the foreground, and the like. Is. Further, when the mobile terminal 10 is provided with a posture sensor and a display surface side camera, it is detected that the display surface is substantially parallel to the ground and that the user's face is substantially in front of the ground when the mobile terminal 10 is in the foreground. However, browsing operations can be detected. Further, the browsing operation recording unit 15 can also detect that the route guidance is completed as one browsing operation. The browsing operation recording unit 15 creates a browsing record showing browsing history information related to browsing of the user's route guidance information, and transmits the created browsing record to the guidance server 20. The browsing history information includes the route movement start time, the route movement end time, the number of passing landmarks, and the average movement speed. The details of this browsing history information will be described later together with a description of the recorded contents of the browsing record database 21.

Further, the guidance server 20 includes a browsing record database 21 and a control unit 22. The control unit 22 can be realized by using the data memory 203 and the communication interface 204 by the processor 201 in the configuration of FIG. 3 reading and executing the guidance information presentation program stored in the program memory 202. It is a functional part. The control unit 22 includes a route determination unit 23 and a presentation information determination unit 24.

The browsing record database 21 is a database that records browsing history information transmitted from the browsing operation recording unit 15. The browsing record database 21 records browsing history information for each user, not integrated browsing history information that integrates browsing history information of a plurality of operators, that is, all users. The details of the data recorded by the browsing record database 21 will be described later.

The route determination unit 23 receives the start point and the end point from the route search start point / end point input unit 13 of the mobile terminal 10. The route determination unit 23 determines the route from the start point to the end point using the map information based on the received route start point and end point. Then, the route determination unit 23 indicates the determined route, the position of the designated landmark that is a node such as an intersection on the route, and the direction (left turn / straight / right turn, etc.) in which the user travels at the designated landmark. The route information including the mark information is determined, and the determined route information is transmitted to the presentation information determination unit 24. The map information may be possessed by the route determination unit 23, or may be stored in the browsing record database 21 so that the route determination unit 23 can refer to it. Alternatively, the route determination unit 23 accesses an external map server that provides map information via the network 30, and refers to the map information provided by the map server to obtain route information including the route and designated landmark information. It may be calculated. Further, the route determination unit 23 transmits the start point and the end point to an external route calculation server that calculates the route information including the route and the designated landmark information from the start point and the end point via the network 30. The route information including the route calculated by the route calculation server and the designated landmark information may be received via the network 30.

The presentation information determination unit 24 receives the route information from the route determination unit 23, and (1) determines the additional landmark information and (2) determines the particle size of the presented landmark information with respect to the received route information. conduct. The granularity of the presented landmark information means the number of landmark information presented to the user at one time by using the data in the browsing record database 21. Further, the presentation information determination unit 24 transmits the route information after the processes of (1) and (2) above to the mobile terminal 10 as route guidance information. Details of the above processes (1) and (2) will be described later.

Here, it is assumed that the guidance server 20, which is the guidance information presentation device according to the present embodiment, is realized by the processor 201, which is a computer, and the guidance information presentation program stored in advance in the program memory 202. However, this guidance information presentation program is not stored in the program memory 202 in advance, but can be recorded in a non-temporary computer-readable medium or provided to the computer through a network. The guidance information presentation program provided in this way can be stored in the program memory 202.

FIG. 5 is a diagram showing an example of browsing history information recorded in the browsing record database 21. The browsing record database 21 records browsing history information for each of a plurality of users, and FIG. 5 typically shows browsing history information for one of the users. In this example, the browsing record database 21 records data ID, route information ID, browsing ID, route movement start time, route movement end time, number of passing landmarks, and average movement speed as browsing history information for one user. ing.

The data ID is an identifier that is sequentially assigned when a browsing record indicating browsing history information is received from the user's mobile terminal 10 and the browsing history information is recorded in the browsing record database 21.

The route information ID is an identifier assigned to each presented route guidance information for identifying which route guidance information the browsing history information corresponds to.

The browsing ID is an identifier assigned each time a browsing record for the route guidance information is received from the mobile terminal 10. As described above, the browsing record can be created by the browsing operation recording unit 15 of the mobile terminal 10. Therefore, for each route information ID, "browsing ID 1" is given by the first browsing record reception, "browsing ID 2" is given by the second browsing record reception, and so on, every time the user browses. The record to which the browsing ID is given is added to the browsing record database 21, and the browsing history information shown in the browsing record is recorded there.

The route movement start time is the time when the user starts the route movement in response to the start of the route guidance of the route guidance program, or the time when the route guidance information is browsed during the route guidance by the route guidance program.

The route movement end time is the time when the user arrives at the destination and finishes the route movement, or the time when the route guidance information is browsed during the route guidance by the route guidance program.

In the example of FIG. 5, the "route movement start time" of the data ID 1 is the time when the user starts the route movement in response to the route guidance start of the route guidance program, and the "route movement end time" is the time when the user guides the route. This is the first browsing time when the route guidance information was browsed during the route guidance by the program. The "route movement start time" of the data ID 2 is the first browsing time, and the "route movement end time" is the second browsing time. The "route movement start time" of the data ID 3 is the second browsing time, and the "route movement end time" is the time when the user arrives at the destination and finishes the route movement.

From the above, the time between the route movement start time and the route movement end time is the time interval at which the user browses the route guidance information by the route guidance program.

The number of passing landmarks is the number of landmarks passed by the user during the time interval when the user browses the route guidance information. The browsing operation recording unit 15 can obtain the number of landmarks passed by this user based on the route guidance information.

The average moving speed is the average moving speed of the user during the time interval when the user browses the route guidance information. The browsing operation recording unit 15 calculates the moving distance of the user during the time interval when the user browses the route guidance information based on the route guidance information, and the calculated distance and the time interval when the user browses the route guidance information. From, the average moving speed of the user can be calculated.

[Determination of additional landmark information]
FIG. 6 is a diagram showing an example of designated landmark setting, and FIG. 7 is a diagram showing an example of additional landmark setting. The presentation information determination unit 24 refers to the route in the route information acquired from the route determination unit 23 when the route length between two consecutive designated landmarks on the route is larger than the length α specified by the system. , Determines to set additional landmarks for each length α in the route.

In the example of FIG. 6, the route in the route information acquired from the route determination unit 23 includes three designated landmarks DLM1, DLM2 and DLM3. Here, expressed by the length α specified by the above system, the path length between the designated landmarks DLM1 and DLM2 is 0.8α, and the path length between the designated landmarks DLM2 and DLM3 is 2.5α. Since the path length between the designated landmarks DLM1 and DLM2 is smaller than the length α, the presentation information determination unit 24 does not set an additional landmark between the designated landmarks DLM1 and DLM2.

On the other hand, the path length between the designated landmarks DLM2 and DLM3 is larger than the length α specified by the system. Therefore, the presentation information determination unit 24 sets additional landmarks between them. That is, the presentation information determination unit 24 sets the additional landmark starting from the designated landmark on the side closer to the starting point among the two designated landmarks in the route for setting the additional landmark. For example, in the example of FIG. 6, the designated landmark DLM2 is used as the starting point. Therefore, as shown in FIG. 7, the presentation information determination unit 24 sets the additional landmark ALM1 at the point of the route length α from the designated landmark DLM2, and further adds the landmark from the additional landmark ALM1 to the point of the path length α. Set ALM2.

As a result, the path length 2.5α between the designated landmark DLM2 and DLM3 is the path length (path length α) between the designated landmark DLM2 and the additional landmark ALM1 and the path length (path) between the additional landmarks ALM1 and ALM2. It is divided into a path length (path length α) and a path length (path length 0.5α) between the additional landmark ALM2 and the designated landmark DLM3.

Additional landmarks can be used as landmarks for directions, but are not always necessary for route guidance information, for example, buildings along the road.

[Determination of particle size of presented landmark information]
8 and 9 are diagrams showing an example of determining the particle size of the landmark information presented to the user. The presentation information determination unit 24 presents the route information acquired from the route determination unit 23 to the user at once according to the following formula based on the past browsing history information of the user recorded in the browsing record database 21. Determine the number of mark information.
(Number of landmarks presented)
= Min (f (t_ [ave], v_ [ave]), g (n_ [ave])) + 1… (Equation 1)
Here, t_ [ave] is the average time length of the browsing time interval of the route guidance information calculated from the past browsing history information for the user. v_ [ave] is the average movement speed of the browsing time interval of the route guidance information calculated from the past browsing history information for the user. f (t_ [ave], v_ [ave]) is the number of landmarks (average) that exist between the average travel distance calculated from t_ [ave] and v_ [ave] on the route presented to the user. It is a function to find the number of travel distance landmarks). g (n_ [ave]) is the average value (average number of passed landmarks) of the number of landmarks passed by the user during the browsing time interval of the route guidance information calculated from the past browsing history information for the user. It is a function to be sought. When calculating the average number of landmarks passed by the function g (n_ [ave]), the numbers after the decimal point shall be rounded down. The average number of passing landmarks is large for users who collectively check routes with a small number of views, and conversely, the average number of passing landmarks is small for users who check the latest route each time. Therefore, it is possible to know the route confirmation tendency of the user from this average number of passing landmarks.

In the example of FIG. 8, the route RO1 having many landmarks (LM1 to LM7) in a short section is shown, and in the example of FIG. 9, the route RO2 having few landmarks (LM1 to LM4) is shown. These routes are included in the route information received from the route determination unit 23 by the presentation information determination unit 24. When the presentation information determination unit 24 sets the additional landmark described in FIG. 7 for the route in the route information received from the route determination unit 23, the route in which the additional landmark is set is used. ..

The presentation information determination unit 24 calculates the browsing time interval of the route guidance information for each data ID from the route movement start time and the route movement end time for each browsing history information about the user in the browsing record database 21. Then, the presentation information determination unit 24 calculates the average time length (t_ [ave]) of the browsing time interval for all the data IDs from the calculated browsing time interval of each data ID. Further, the presentation information determination unit 24 calculates the average moving speed (v_ [ave]) for all the data IDs by calculating the average value of the average moving speeds for each data ID in the browsing record database 21. Then, the presentation information determination unit 24 calculates the average moving distance AMD from the average time length (t_ [ave]) and the average moving speed (v_ [ave]). In the examples of FIGS. 8 and 9, the average moving distance AMD is assumed to be "500 m". Further, the presentation information determination unit 24 uses the function g (n_ [ave]) to calculate the average number of passing landmarks ALN, which is the average value of the number of passing landmarks of all the data IDs in the browsing record database 21. do. In this example, the average number of passing landmarks ALN is assumed to be "3".

In the example of the route RO1 shown in FIG. 8, since the number of landmarks existing during the average moving distance AMD “500 m” is “4”, it is calculated by the function f (t_ [ave], v_ [ave]). The average number of travel distance landmarks is "4". Since the average number of passing landmarks ALN calculated by the function g (n_ [ave]) is "3", the number of presented landmarks calculated by the above equation (1) is Min (4, 3). It goes from +1 to "4". Therefore, in the example of the route RO1, the presentation information determination unit 24 calculates “4” as the number of landmark information presented to the user at one time.

On the other hand, in the example of the route RO2 shown in FIG. 9, since the number of landmarks existing during the average travel distance AMD “500 m” is “2”, the function f (t_ [ave], v_ [ave]) is used. The calculated average number of travel distance landmarks is "2". Since the average number of passing landmarks ALN calculated by the function g (n_ [ave]) is "3", the number of presented landmarks calculated by the above equation (1) is Min (2, 3). It goes from +1 to "3". Therefore, in the example of the route RO2, the presentation information determination unit 24 calculates “3” as the number of landmark information presented to the user at one time.

[motion]
Next, the operation of the guidance information presentation system including the guidance server 20 as the guidance information presentation device according to the embodiment of the present invention will be described.

FIG. 10 is an operation flowchart of the mobile terminal 10. The operation of this flowchart is realized by the processor 101 of the mobile terminal 10 reading and executing the route guidance program stored in the program memory 102. Further, FIG. 11 is an operation flowchart of the guidance server 20. The operation of this flowchart is realized by the processor 201 of the guidance server 20 reading and executing the guidance information presentation program stored in the program memory 202. Further, FIG. 12 is a sequence diagram showing determination of route guidance information in the guidance information presentation system and data communication for user presentation, and FIG. 13 is a recording of browsing history information of route guidance information in the guidance information presentation system. It is a sequence diagram which shows the data communication for this. Here, FIG. 11 shows the operation of the guidance server 20 for one mobile terminal 10, and the guidance server 20 also operates for the other mobile terminals. In FIGS. 12 and 13, the "user interface unit" is described as a "user IF unit", and the "route search start point / end point input unit" is described as a "start / end point input unit". There is.

(1) Determination of route guidance information and presentation by user In the mobile terminal 10, a user activates a route guidance program from the input device 1071 and inputs a route search start point and an end point (step S101). As a result, the user interface unit 11 transmits the route start point and end point information (signal SG11) to the route search start point / end point input unit 13. When the user specifies the current position, the route start point can be the position information acquired by the GPS receiver 108 or the like.

The route search start point / end point input unit 13 transmits a route determination request (signal SG12) to the route determination unit 23 of the guidance server 20 via the network 30 (step S102). This route determination request includes route start point and end point information from the user interface unit 11. After that, the mobile terminal 10 waits for reception of the route guidance information transmitted from the guidance server 20 (step S103).

After starting, the guidance server 20 is waiting for a signal from the mobile terminal 10. That is, in the guidance server 20, first, the route determination unit 23 determines whether or not the route determination request from the mobile terminal 10 has been received (step S201). If it is determined that the route determination unit 23 has not received the route determination request, the control unit 22 repeats the process of step S201 after a certain period of time has elapsed.

Then, when it is determined in step S201 that the route determination request from the mobile terminal 10 has been received, the route determination unit 23 bases on the route start point and end point information included in the received route determination request. The route information is determined (step S202). The route information includes a route from the route start point to the end point determined using the map information, the position of the designated landmark on the route, and the landmark information indicating the direction in which the user travels at the designated landmark. .. Then, the route determination unit 23 transmits the determined route information (signal SG13) to the presentation information determination unit 24.

When the presentation information determination unit 24 receives the route information from the route determination unit 23, the presentation information determination unit 24 determines an additional landmark for the route in the route information (step S203). After that, the presentation information determination unit 24 transmits a browsing history information request (signal SG14) for the user of the mobile terminal 10 to the browsing record database 21. The process of step S203 may be performed after the browsing history information is received from the browsing record database 21 by the presentation information determination unit 24, which will be described below.

When the browsing record database 21 receives the browsing history information request from the presentation information determination unit 24, the browsing record database 21 transmits the browsing history information (signal SG15) included in the browsing record database to the presentation information determination unit 24. This browsing history information is information necessary for the presentation information determination unit 24 to determine the particle size of the presentation landmark information described in the examples of FIGS. 8 and 9, for example, the route movement start time and the route movement for the user. It can include the end time, the number of passing landmarks, and the average travel speed.

When the presentation information determination unit 24 receives the browsing history information from the browsing record database 21, the presentation information determination unit 24 is based on the route information from the route determination unit 23 and the browsing history information from the browsing record database 21, according to the above (Equation 1). The particle size of the presented landmark information is determined (step S204). When it is determined in step S203 to set an additional landmark, the presentation information determination unit 24 uses the route information after the additional landmark is set instead of the route information from the route determination unit 23. .. In this way, the presentation information determination unit 24 determines the number of landmark information to be presented to the user at one time. The presentation information determination unit 24 provides route information from the route determination unit 23 or route information after setting additional landmarks, and presentation number information indicating the determined number as the number of landmark information presented to the user at one time. Create route guidance information to include.

After the route guidance information is created in this way, the presentation information determination unit 24 transmits the route guidance information (signal SG16) to the mobile terminal 10 of the transmission source of the route determination request via the network 30 (step S205).

In the mobile terminal 10, when the information acquisition unit 14 receives the route guidance information transmitted from the guidance server 20 in the step S103, the information acquisition unit 14 saves the received route guidance information in the data memory 103 (. Step S104). Then, the information acquisition unit 14 transmits the stored route guidance information (signal SG17) to the user interface unit 11. As a result, the user interface unit 11 presents the route guidance information to the user by the output device 1072 (step S105). At that time, the number of landmark information indicated by the presentation number information included in the route guidance information is presented to the user at one time.

Here, an example of a method of presenting landmark information will be described with reference to FIG. In this example, the route is to turn left at the intersection JCA, turn right at the next intersection JCB, and then go straight on at the next intersection JCC. First, in the user a who has a tendency to confirm routes collectively, the number of presented information indicating the number of landmark information presented to the user at one time is, for example, "3". In this case, the user interface unit 11 presents three landmark information to the user a at a time. For example, when presenting landmark information for intersection JCA (“turn left at intersection JCA”), landmark information for intersection JCB (“turn right at intersection JCB”) and landmark information for intersection JCC (“go straight on intersection JCC”). ) Is also presented at once. Then, when the user a is traveling along the route, new landmark information is not presented until the user a passes the intersection JCC.

Next, for the user b who has a route confirmation tendency to confirm the latest route each time, the presentation number information indicating the number of landmark information presented to the user at one time is, for example, "1". In this case, the user interface unit 11 presents one landmark information to the user b at a time. For example, before passing through the intersection JCA, only the landmark information for the intersection JCA (“turn left at the intersection JCA”) is presented. Then, after passing through the intersection JCA and before passing through the intersection JCB, only the landmark information for the intersection JCB (“turn right at the intersection JCB”) is presented. Further, after passing through the intersection JCB and before passing through the intersection JCC, only the landmark information for the intersection JCC (“go straight on the intersection C”) is presented.

The user who browses this route guidance information moves according to the route and landmark information indicated by the route guidance information.

(2) Processing at the time of presenting the route guidance information While the route guidance information is being presented (during route guidance), the mobile terminal 10 reports the user's browsing operation of the route guidance information to the guidance server 20.

That is, in the mobile terminal 10, the browsing operation recording unit 15 determines whether or not the user has performed a browsing operation on the information presented by the route guidance program (step S106). When it is determined that the browsing operation by the user has not been performed, the control unit 12 of the mobile terminal 10 determines whether or not the route guidance by the route guidance program is completed (step S107). If it is determined that the route guidance by the route guidance program has not been completed, the browsing operation recording unit 15 repeats the process of step S106. If it is determined that the route guidance by the route guidance program has been completed, the process ends.

On the other hand, when the user performs a browsing operation of the route guidance information, a browsing notification (signal SG21) is transmitted from the user interface unit 11 to the browsing operation recording unit 15. As a result, in step S106, the browsing operation recording unit 15 determines that the browsing operation has been performed by the user. Then, the browsing operation recording unit 15 causes the output device 1072 to present the route guidance information stored in the data memory 103. At that time, the number of landmark information indicated by the presented number information is presented to the user at one time. An example of the presentation method is as described in FIG.

Then, the browsing operation recording unit 15 transmits a browsing record (signal SG22) indicating browsing history information related to browsing of the route guidance information by the user to the guidance server 20 via the network 30 (step S108). The browsing history information can include the route movement start time, the route movement end time, the number of passing landmarks, and the average movement speed of the user related to the browsing. Further, when the browsing operation is due to the end of the route guidance, the browsing operation recording unit 15 can include the guidance end information for indicating that in the browsing record. After that, the mobile terminal 10 repeats from the process of step S106. The browsing operation recording unit 15 stores at least the route movement end time in the browsing history information indicated by the browsing record as the next route movement start time in the data memory 103 for the browsing history information at the time of the next browsing. Keep it.

After transmitting the route guidance information in step S205, the control unit 22 of the guidance server 20 is waiting for reception of the browsing record from the mobile terminal 10. That is, the control unit 22 determines whether or not the browsing record from the mobile terminal 10 has been received (step S206). If it is determined that the browsing record has not been received, the control unit 22 repeats the process of step S206 after a certain period of time has elapsed.

In response to the transmission of the browsing record from the mobile terminal 10, the guidance server 20 determines in step S206 that the control unit 22 has received the browsing record from the mobile terminal 10. In this case, the control unit 22 records the browsing history information indicated by the received browsing record in the browsing record database 21 (step S207).

After that, the control unit 22 of the guidance server 20 determines whether or not the route guidance on the mobile terminal 10 is completed (step S208). This can be done by determining whether or not the received browsing record includes the guidance end information. If the route guidance is not completed, the control unit 22 repeats the process from step S206.

Then, if it is determined in step S208 that the route guidance has been completed, the process ends.

[effect]
As described above, in the guidance server 20 as the guidance information presenting device according to the embodiment, the route determination unit 23 acquires the starting point and the destination, and the route from the starting point to the destination and a plurality of routes on the route. For each landmark of the landmark, it functions as a route information generator that generates route information including the location of the landmark and the landmark information indicating the direction in which the user travels at the landmark, and controls the browsing record database 21. The unit 22 functions as a browsing history information recording unit for recording the browsing history information by the user regarding the past route guidance information presented to the user, and the presentation information determination unit 24 becomes the browsing history information recording unit. It functions as a guidance information determination unit that determines the route guidance information to be presented to the user based on the recorded browsing history information of the user and the route information generated by the route information generation unit.
Therefore, it becomes possible to create and present the route guidance information optimized for each user based on the browsing history information of the past route guidance information of each user. That is, by determining the route guidance information based on the past browsing history information peculiar to the user, it is possible to present the route guidance information to the user based on the understanding method of the geographical space different for each user, and the user can use the route. It becomes difficult to get lost.

Here, the browsing record database 21 and the control unit 22 as the browsing history information recording unit use one or more time intervals in which the user browses the route guidance information as browsing history information, one or more time intervals, respectively. The average speed of travel of the user and the number of landmarks the user has passed during one or more time intervals are recorded.
Therefore, by recording these information as browsing history information, it is possible to perform calculation using these when determining the guidance route information to be presented to the user.

Further, the presentation information determination unit 24 as the guidance information determination unit determines the number of landmark information to be presented to the user at one time based on the browsing history information and the route information.
Therefore, by determining the number of landmark information to be presented to the user at one time based on the past browsing history information unique to the user, the landmark is based on the understanding method of the geospatial space that differs for each user. Information is presented to the user, making it harder for the user to get lost.

Further, the presentation information determination unit 24 as the guidance information determination unit calculates the average movement distance using all the average time intervals and all the average movement speeds in one or more time intervals, and the calculated average movement. The number of landmarks on the route that exist during the distance is calculated as the average number of travel distance landmarks, and the average number of landmarks that the user has passed during one or more time intervals is the average number of transit landmarks. It is calculated as a number, and the number of landmark information to be presented to the user at one time is determined based on the smaller value of the calculated average number of travel distance landmarks and the average number of transit landmarks.
Therefore, by determining the number of landmark information to be presented to the user at one time as described above, the number of landmark information optimized for the user can be obtained regardless of the number of landmarks on the route. Will be presented. As a result, the burden on the user when understanding the landmark information is reduced, and the time for the user to understand the landmark information can be shortened.

Further, the presentation information determination unit 24 as the guidance information determination unit sets the guidance route information so that the determined number of landmark information is presented to the user at one time, and sets the route guidance information. Send to the user's mobile terminal.
Therefore, the user terminal can present the landmark information to the user in a form based on the understanding method of the geographical space that differs for each user.

When the distance between two consecutive landmarks among the plurality of landmarks on the route is longer than the threshold value, the presentation information determination unit 24 as the guidance information determination unit may use these two consecutive landmarks. Set one or more new landmarks in between and keep the distance between each landmark below the threshold.
Therefore, since the additional landmark is set when the distance between two consecutive landmarks on the route is longer than the threshold value, the user is proceeding according to the route guidance information presented by the additional landmark. You can recognize that and it will be hard to get lost.

[Other embodiments]
The present invention is not limited to the above embodiment.
For example, the number of additional landmark information and the number of landmark information presented to the user at one time is determined by the presentation information determination unit 24, but the route determination unit 23 may determine the route information.

In addition, the path length α specified by the system was used to determine the additional landmark. For example, the path length α suitable for the user is set based on the browsing history information in the browsing record database. May be good.

Further, although the browsing history information to be recorded in the browsing record database 21 is created by the browsing operation recording unit 15 of the mobile terminal 10, it may be created by the control unit 22 of the guidance server 20. In this case, the browsing operation recording unit 15 only needs to notify the control unit 22 that the browsing operation has been performed.

Further, the method described in the above embodiment is, for example, a magnetic disk (floppy (registered trademark) disk, hard disk, etc.) or an optical disk (CD-ROM, DVD) as a program (software means) that can be executed by a computer (computer). , MO, etc.), stored in a recording medium such as a semiconductor memory (ROM, RAM, flash memory, etc.), or transmitted and distributed by a communication medium. The program stored on the medium side also includes a setting program for configuring the software means (including not only the execution program but also the table and the data structure) to be executed by the computer in the computer. A computer that realizes this device reads a program recorded on a recording medium, constructs software means by a setting program in some cases, and executes the above-mentioned processing by controlling the operation by the software means. The recording medium referred to in the present specification is not limited to distribution, and includes storage media such as magnetic disks and semiconductor memories provided in devices connected inside a computer or via a network.

In short, the present invention is not limited to the above embodiment, and can be variously modified at the implementation stage without departing from the gist thereof. In addition, each embodiment may be carried out in combination as appropriate as possible, in which case the combined effect can be obtained. Further, the above-described embodiment includes inventions at various stages, and various inventions can be extracted by an appropriate combination in a plurality of disclosed constituent requirements.

10 ... Mobile terminal 11 ... User interface unit 12 ... Control unit 13 ... Route search start point / end point input unit 14 ... Information acquisition unit 15 ... Browsing operation recording unit 20 ... Guidance server 21 ... Browsing record database 22 ... Control unit 23 ... Route determination unit 24 ... Presentation information determination unit 30 ...

Network

101, 201 ... Processor 102, 202 ... Program memory 103, 203 ...

Data memory

104, 204 ... Communication interface 105 ... Input /

output interface

106, 205 ... Bus 107 ... User interface device 1071 ... Input device 1072 ... Output device 108 ... GPS receiver

Claims

Acquires a departure point and a destination, and indicates the position of the landmark and the direction in which the user travels at the landmark for the route from the departure point to the destination and each landmark of a plurality of landmarks on the route. A route information generator that generates route information including landmark information,
A browsing history information recording unit that records browsing history information by the user regarding past route guidance information presented to the user, and a browsing history information recording unit.
Guidance information determination to determine the route guidance information to be presented to the user based on the browsing history information of the user recorded in the browsing history information recording unit and the route information generated by the route information generation unit. Department and
A guidance information presentation device.
The browsing history information recording unit can be used as the browsing history information.
One or more time intervals when the user browses the route guidance information, the average moving speed of the user at each of the one or more time intervals, and the user during the one or more time intervals. Record the number of landmarks passed,
The guidance information presenting device according to claim 1.
The guidance information determination unit
Based on the browsing history information and the route information, the number of the landmark information presented to the user at one time is determined.
The guidance information presenting device according to claim 2.
The guidance information determination unit
The average moving distance is calculated using all the average time intervals and all the average moving speeds in the one or more time intervals.
The number of landmarks on the route existing during the calculated average travel distance is calculated as the average travel distance landmark number.
The average value of the number of landmarks passed by the user during the one or more time intervals is calculated as the average number of landmarks passed.
The number of the landmark information to be presented to the user at one time is determined based on the smaller value of the calculated average number of travel distance landmarks and the average number of transit landmarks.
The guidance information presenting device according to claim 2.
The guidance information determination unit
The route guidance information is set so that the determined number of landmark information is presented to the user at one time.
The set route guidance information is transmitted to the user's mobile terminal.
The guidance information presenting device according to claim 3 or 4.
The guidance information determination unit
If the distance between two consecutive landmarks on the path is longer than the threshold, one or more new landmarks are set between the two consecutive landmarks, respectively. Keep the distance between landmarks below the threshold,
The guidance information presenting device according to any one of claims 2 to 5.
It is a guidance information presentation method performed by a guidance information presenting device that includes a processor and storage and determines route guidance information to be presented to the user.
The processor acquires a starting point and a destination, and for each landmark of the route from the starting point to the destination and a plurality of landmarks on the route, the user at the landmark position and the landmark. Generating route information, including landmark information indicating the direction of travel,
The processor records browsing history information by the user regarding past route guidance information presented to the user.
The processor determines the route guidance information to be presented to the user based on the recorded browsing history information and the generated route information.
Guidance information presentation method including.
A guidance information presentation program that causes a processor to function as each part of the guidance information presentation device according to any one of claims 1 to 6.