JP2021092795A - Server device, terminal device, information communication method, and program for server device - Google Patents

Abstract

To provide a server device and the like that can update map information.SOLUTION: A server device includes: a storage unit 14 for storing map information; an acquisition unit for acquiring collation result information indicating a collation result of map information included in terminal device map information held by a terminal device Sn with image information taken with an imaging unit included in the terminal device Sn; and a request unit for requesting the terminal device Sn to transmit the image information taken with the imaging unit if it is determined that there is no need to update the terminal device map information on the basis of the map information stored in the storage unit 14 and the collation result information.SELECTED DRAWING: Figure 4

Description

The present application belongs to the technical fields of server devices, terminal devices, information communication methods, and programs for server devices. More specifically, it belongs to the technical fields of server devices, terminal devices, information communication methods, and programs for server devices that perform processing related to map information used for moving a moving body such as a vehicle or a person.

In recent years, for example, a navigation device mounted on a vehicle and guiding its movement has become widespread. Generally, in a navigation device, guidance along a route from a departure point to a destination is performed, for example, while displaying a map or outputting a guidance voice.

Recently, for example, for intersections and points with large signboards, live-action images (including both still images and moving images) of the scenery around the intersections and the signboards themselves are actually taken from the driver's point of view. The same applies.) Is also displayed together with a map for guidance of the intersection or the like. According to the navigation device that displays such a live-action image, the scenery actually seen by the driver is displayed on a display or the like and the corresponding points are guided, so that the burden on the driver can be reduced while reducing the burden on the driver. More convenient and reliable guidance is possible. At this time, as a configuration for displaying the live-action image as described above, it is possible to record the image information corresponding to the live-action image in association with the map information including the point where the live-action image was taken. It is said.

On the other hand, the contents of the scenery, signboards, etc. around the intersection may change with the passage of time. In this case, with the change, the content of the live-action image taken before them and the actual situation (content of the signboard, etc.) will be different. As a result, if the guidance is given using an old live-action image different from the actual situation, the driver or the like may be confused. Therefore, for example, it becomes necessary to update the image information corresponding to the live-action image included in the map information to the latest one at predetermined intervals. Conventional techniques for updating such image information are disclosed in, for example, Patent Document 1 and Patent Document 2 below.

At this time, in the technique described in Patent Document 1 below, in order to update the facility information including the live-action image on the center side, a camera for peripheral photography mounted on the vehicle is used. More specifically, the image of the facility taken in the past is compared with the image of the facility newly taken by the camera, and if there is a difference between the two, the newly taken image is transmitted to the center. It is supposed to be used for updating image information.

Further, in the technique described in Patent Document 2 below, a model of a signboard image is prepared in advance, and when a signboard matching the model is photographed by an in-vehicle camera, for example, from GPS (Global Positioning System). Along with the obtained position information, a newly taken image is to be recorded as map information.

Japanese Patent No. 4946238 Japanese Unexamined Patent Publication No. 2004-151523

However, the techniques described in the above patent documents cause the following problems.

First, in the technique described in Patent Document 1, the image information itself is "always" transmitted to the center when the comparison result in the vehicle is negative. Therefore, when the number of vehicles equipped with the camera increases, There is a problem that a large amount of image information is centrally transmitted to the center, and as a result, the amount of communication may become enormous.

Further, in the technique described in Patent Document 2, there is a possibility that there is an error in the collation result of a signboard or the like on the vehicle, and there is a possibility that the position information by GPS also contains an error. Therefore, in these cases, if the image is recorded as map information as it is, the accuracy of the map information itself will be reduced, and it is not appropriate for sharing with map information for other vehicles. There is. Therefore, when presenting the map information to the user, there is a problem that the information with low accuracy is presented.

Therefore, the present application has been made in view of each of the above problems, and one example of the problem is to provide a server device or the like capable of updating map information.

In order to solve the above problem, the invention according to claim 1 comprises a storage unit for storing map information, feature information included in the terminal device map information included in the terminal device, and an imaging unit included in the terminal device. It is not necessary to update the terminal device map information based on the acquisition unit that acquires the collation result information indicating the collation result with the captured imaging information, the map information stored in the storage unit, and the collation result information. It is characterized by including a requesting unit that requests the terminal device to transmit the imaging information captured by the imaging unit when it is determined.

In order to solve the above problem, the invention according to claim 2 is provided by a storage unit for storing map information, feature information included in the terminal device map information included in the terminal device, and an imaging unit included in the terminal device. When it is determined that it is necessary to update the map information based on the collation result information and the acquisition unit that acquires the collation result information indicating the collation result with the captured imaging information, the image is captured by the imaging unit. It is characterized by including a requesting unit that requests the terminal device to transmit the imaging information.

In order to solve the above problems, the invention according to claim 3 comprises a storage unit for storing map information, feature information included in the terminal device map information included in the terminal device, and an imaging unit included in the terminal device. When the acquisition unit that acquires the collation result information indicating the collation result with the captured imaging information and the feature information that is the target of the collation result information are the feature information related to the predetermined feature, the imaging unit It is characterized by including a requesting unit that requests the terminal device to transmit the imaged image pickup information.

In order to solve the above problem, the invention according to claim 4 is an image pickup unit, a storage unit for storing terminal device map information, feature information included in the terminal device map information, and an image pickup unit. It is necessary to update the terminal device map information based on the transmission unit that transmits the collation result information indicating the collation result with the captured imaging information to the server device, the map information stored in the server device, and the collation result information. The server device includes a receiving unit that receives request information transmitted from the server device when the server device determines that the information is not present, and the transmitting unit transmits the imaging information to the server device in response to the request information. It is characterized by doing.

In order to solve the above problems, the invention according to claim 5 is an information communication method used by a server device having a storage unit for storing map information, and is included in the terminal device map information included in the terminal device. The acquisition step of acquiring the collation result information indicating the collation result of the feature information to be collated with the image pickup information captured by the image pickup unit of the terminal device, and the map information stored in the storage unit and the collation result information. It is characterized by including a request step of requesting the terminal device to transmit the image pickup information imaged by the image pickup unit when it is determined that the terminal device map information does not need to be updated based on the above.

It is a block diagram which shows the outline structure of the information notification device which concerns on embodiment. It is a block diagram which shows the outline structure of the information processing system which concerns on 1st Example. It is a block diagram and the like showing the detailed configuration of the navigation device according to the first embodiment, (a) is the block diagram, and (b) is a diagram exemplifying the contents of the map data recorded in the navigation device. is there. It is a block diagram and the like showing the detailed configuration of the server device according to the first embodiment, (a) is the block diagram, and (b) is a figure exemplifying the contents of the map data recorded in the server device. is there. It is a flowchart which shows the update process of the map data which concerns on 1st Example. It is a flowchart which shows the update process of the map data which concerns on 2nd Example. It is a flowchart which shows the update process of the map data which concerns on 3rd Example. It is a flowchart which shows the update process of the map data which concerns on 4th Embodiment. It is a flowchart which shows the update process of the map data which concerns on 5th Example. It is a flowchart which shows the update process of the map data which concerns on 6th Example. It is a flowchart which shows the update process of the map data which concerns on the 2nd modification, (a) is the flowchart which shows the generation process of the update list, and (b) is the flowchart which shows the update process of the feature data using the update list. Is. It is a flowchart which shows an example of the operation of information notification. It is a schematic diagram which shows an example of the display of information notification. It is a schematic diagram which shows an example of the display of information notification, (a) is a schematic diagram before update, (b) is a schematic diagram of an intermediate state, and (c) is a schematic diagram after update. It is a schematic diagram which shows the modification of the display of information notification. It is a schematic diagram which shows the modification of the display of information notification.

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

As shown in FIG. 1, the information notification device S according to the embodiment is a movable information notification device S, and includes update information acquisition means 1 and notification means 2.

In this configuration, the update information acquisition means 1 is feature information corresponding to the feature included in the map information used for moving the terminal device, and is included in the terminal device map information stored in the terminal device. When the feature information that has been collected and the feature information newly acquired by the terminal device are different from each other in the terminal device, the server device SV that updates the map information relates to updating the map information. Get updated information.

Here, as an example of the feature information corresponding to the feature, the position information indicating the position of the feature corresponding to the feature information, the imaging information generated by imaging the feature corresponding to the feature information, etc. Can be mentioned. For example, an image newly taken by the camera, information on the position of the vehicle at the time of shooting, information on the shooting direction of the camera, and the like can be mentioned. In addition, examples of features include roads, tunnels, bridges, right turn lanes, road signs, guide signs, warning signs, buildings such as landmarks and shops, and facilities.

Further, as an example of the update information, update data such as the position of the feature, the image of the feature, the illustration of the feature, the name of the feature, and the update time updated in the map information can be mentioned. The updated information may be information based on a field survey.

In addition, the notification means 2 notifies the updated information. Here, as an example of the notification means 2, an output means for outputting a map or the like such as a display, an output means for outputting sound such as a speaker, or the like can be mentioned.

As described above, according to the information notification device S according to the embodiment, the update information can be acquired from the server device that updated the map information, and the update information can be notified to the user, so that the user can update the map information. Can be recognized.

Next, specific examples corresponding to the above-described embodiments will be described with reference to FIGS. 2 to 10. In each of the embodiments described below, a plurality of navigation devices (an example of an information notification device) mounted on or possessed by a moving body such as a vehicle and a server device are provided via a network such as the Internet. This is an example when the embodiment is applied to a connected information processing system.

(1) First Example First, the first embodiment corresponding to the embodiment will be described with reference to FIGS. 2 to 5. Note that FIG. 2 is a block diagram showing an outline configuration of the information processing system according to the first embodiment, and FIG. 3 is a block diagram showing a detailed configuration of the navigation device according to the first embodiment. Further, FIG. 4 is a block diagram or the like showing a detailed configuration of the server device according to the first embodiment, and FIG. 5 is a flowchart showing an update process of map data according to the first embodiment. At this time, in FIGS. 2, 5 (a) and 5 (b), the server device of the first embodiment corresponding to each component of the server device SV according to the embodiment shown in FIG. The same member number as each component in the SV is used.

As shown in FIG. 2, the information processing system SS according to the first embodiment includes a server device SV, an information notification device S (information processing device) according to each embodiment, and a plurality of navigation devices as an example of a terminal device. It is configured to include S1, a navigation device S2, ..., And a navigation device Sn (n is a natural number). The server device SV, each navigation device S1, the navigation device S2, ..., And the navigation device Sn are connected so as to be able to exchange information via a network W such as the Internet. In the following description, when common matters are described for each navigation device S1, navigation device S2, ..., Navigation device Sn, the term "navigation device S" is simply referred to as appropriate.

In this configuration, as illustrated in FIG. 3A, each navigation device S is composed of an output unit 2 (corresponding to the notification means 2 according to the embodiment) including a liquid crystal display, a speaker, and the like, and an operation button, a remote control, or the like. Operation unit 4, a recording unit 9 including a hard disk or the like that non-volatilely records a database including a map data SD or the like described later corresponding to a map or the like displayed when guiding the movement of the moving body, and an acceleration sensor. Sensor unit 6 including a self-supporting sensor such as a GPS sensor, a VICS (Vehicle Information and Communication System) (registered trademark) sensor for collecting congestion information, etc., and a CCD (Charge Coupled Device), for example.
) And the like, and a camera 7 that captures the direction specified by the processing unit 8 described later, and a processing unit 8 including a CPU, RAM (Random Access Memory), ROM (Read Only Memory), and the like. It is configured. In addition to the map data and the like, the recording unit 9 also records navigation data such as voice data necessary for guiding the movement of the moving body as non-volatile information.

Further, the processing unit 8 includes an interface 1 corresponding to an example of the update information acquisition means 1 according to the embodiment, a determination unit 3, and an update unit 5. At this time, the interface 1, the determination unit 3, and the update unit 5 may be configured by a so-called hardware logic circuit, or correspond to a flowchart showing the map data update process according to the first embodiment described later. The program may be functionally realized by being read and executed by the CPU in the processing unit 8. Further, the camera 7 corresponds to an example of the "imaging unit" according to the present application, the processing unit 8 corresponds to an example of the "detection unit" and the "terminal device determination unit" according to the present application, and the recording unit 9 Corresponds to an example of the "terminal device storage unit" according to the present application, and the interface 1 corresponds to an example of the "terminal device transmission unit" according to the present application.

Next, the map data SD according to the first embodiment recorded in the recording unit 9 will be described with reference to FIG. 3 (b). As illustrated in FIG. 3B, the map data SD recorded in each navigation device S according to the first embodiment includes feature data 90, road data 91, and background data 92. It has been. At this time, the feature data 90 includes data related to features that should be included in the map output to the output unit 2 (for example, a display, a speaker, etc.) when guiding the movement of the moving body.

Here, the "feature" according to the first embodiment means a thing that is significant in guiding the movement of the moving body, for example, a facility such as a building, a park or an overpass, or a signal, a sign or a pedestrian crossing. , As a general rule, refers to things that exist on or around the road. Then, as the feature data 90, the version in the map data SD of the data indicating the feature identified by the feature ID is associated with the preset feature ID for identifying from other features. The version data shown, the position data consisting of, for example, latitude data and the longitude data indicating the position of the feature, and the feature amount data showing the features of the feature quantitatively are recorded, respectively. Examples of the feature amount data include feature amount data extracted by the SIFT (Scale-Invariant Feature Transform) method, which is an algorithm used for recognizing an object in an image. This SIFT method is an algorithm conventionally used for the object recognition and the like. For example, by recording the feature amount data by the SIFT method instead of the image data corresponding to the actual image of the feature, the amount of data can be significantly reduced.

On the other hand, the road data 91 is similar to the road data for map data used in the conventional navigation device, and the road data indicating the road included on the map is recorded as, for example, link data indicating a plurality of links. ing. Further, the background data 92 is also the same as the background data for the map data used in the conventional navigation device, and the background other than the road and the feature included on the map (in a flat map, the road). Background data used for drawing (or the base of the feature) is recorded.

The geographical range of the map recorded in the navigation device S as the map data SD may cover, for example, the entire country (for example, Japan) in which the navigation device S is used, or, for example, one prefecture or the like. It may be limited to a partial area such as one region. Further, the version of the feature data 90 and the version of the map data SD as a whole may be in agreement with each other, and the version of the entire map data SD and the version of each of the feature data 90 are set separately. It may be one.

On the other hand, as illustrated in FIG. 4A, the server device SV according to the first embodiment has an interface corresponding to an example of a receiving unit of the server device SV and an example of a transmitting unit of the server device SV according to the embodiment, respectively. 10, a processing unit 11 including a CPU, a RAM, a ROM, and the like and corresponding to an example of a determination unit of the server device SV according to the embodiment, a display 12 including a liquid crystal display, and an operation unit 13 including a keyboard, a mouse, and the like. A record consisting of a hard disk or the like that non-volatilely records a database including map data VD as master map data used for updating the map data SD recorded in each navigation device S connected to the server device SV. It is composed of a part 14. The recording unit 14 corresponds to an example of a map information storage unit of the server device SV of the embodiment. Further, the processing unit 11 corresponds to an example of the "update unit" according to the present application.

Next, the map data VD according to the first embodiment recorded in the recording unit 14 will be described with reference to FIG. 4 (b). As illustrated in FIG. 4B, the map data VD recorded in the server device SV according to the first embodiment includes feature data 140, road data 141, and background data 142. ing. At this time, the feature data 140 is output to the output unit 2 of the navigation device S when guiding the movement of the moving object, similar to the feature data 90 of the map data SD recorded in each navigation device S. Contains data on features that should be included on the map. That is, as the feature data 140, the version data indicating the version in the map data VD of the data indicating the feature identified by the feature ID, which is associated with the same feature ID as the map data SD, is Each is recorded. In addition, position data indicating the position of the feature identified by the feature ID and live-action image data of the feature identified by the feature ID may be recorded. In the following description, the live-action image data is simply referred to as "live-action data".

On the other hand, in the road data 141, like the road data 91 of the map data SD recorded in each navigation device S, the road data indicating the road included in the map is recorded as, for example, link data. Further, the background data 142 records background data used for drawing a background other than roads and features included on the map, similarly to the background data 92 of the map data SD recorded in each navigation device S. ing. As described above, the feature data 140, the road data 141, and the background data 141 are master map data for the feature data 90, the road data 91, and the background data 92 recorded in each navigation device S, respectively. It has a position as.

The geographical range of the map recorded in the server device SV as the map data VD may be limited to a certain area such as the map data SD used in the navigation device S. However, from the viewpoint that the map data VD is used to generate the update data (an example of the update information) for updating the map data SD recorded in the plurality of navigation devices S, the corresponding geographical range is. For example, it is desirable to cover the entire country (for example, Japan).

Further, the version of the feature data 140 and the version of the map data VD as a whole may be in agreement with each other as in the feature data 90 of the navigation device S, or the version of the entire map data VD and the feature. The version of each data 140 may be set separately.

In the configuration described above, the interface 1 of each navigation device S controls the input / output of data to and from the server device SV via the network W under the control of the processing unit 8, and also controls the recording unit 9 and the sensor unit 6. And controls the input / output of data to and from the camera 7. Then, the determination unit 3 and the update unit 5 of the processing unit 8 provide necessary information based on the information indicating whether or not the update is possible preset in the navigation device S or the operation by the user (driver or the like) in the operation unit 4. The map data update process according to the embodiment is executed while being output to the output unit 2. At this time, the feature data 90 or the like recorded in the recording unit 9 is read out as necessary and is subjected to the map data update processing by the determination unit 3 or the like. Further, under the control of the processing unit 8, the camera 7 images the front, side, or rear of the vehicle or the like on which the navigation device S is mounted, and outputs the live-action data corresponding to the image to the processing unit 8. Further, the processing unit 8 executes a navigation process for guiding the movement of the moving body on which the navigation device S is mounted, based on the current position data and the traffic jam information output from the sensor unit 6, and also performs a navigation process for guiding the movement of the moving body, which will be described later. The map data update process according to the embodiment is executed.

At this time, the processing unit 8 of each navigation device S is mainly based on the current position data output from the sensor unit 6, the direction data indicating the moving direction of the moving body, and the like, and the camera 7 (in other words, the navigation device S itself. ) On the map, and the shooting direction as the camera 7 can be calculated / estimated. When the moving body is a vehicle, the camera 7 can be used for calculating / estimating the shooting direction by inputting the installation position and the installation direction of the camera 7 in the vehicle in advance. From these facts, the processing unit 8 can calculate / estimate whether or not the above-mentioned feature on the map is in a position and a direction that can be photographed by the camera 7 at that time for each place. ..

On the other hand, the interface 10 of the server device SV controls the input / output of data to and from each navigation device S via the network W under the control of the processing unit 11. Then, the processing unit 11 executes the map data update processing according to the first embodiment while displaying the necessary information on the display 12 based on the operation by the user (administrator) in the operation unit 13. At this time, the feature data 140 or the like recorded in the recording unit 14 is read out as necessary and subjected to the map data update processing by the processing unit 11, or is controlled by the processing unit 11 from each navigation device S. It is updated by the transmitted live-action data.

Next, the map data update process according to the first embodiment will be specifically described with reference to FIGS. 2 to 5. The map data update process is a process of updating the map data SD recorded in each navigation device S using the map data VD recorded in the server device SV as master map data, and is mainly a process of each navigation device S. It is executed mainly by the processing unit 11 of the unit 8 and the server device SV.

That is, as shown in FIG. 5, in the map data update process according to the first embodiment, the processing unit 8 of the navigation device S uses the camera 7 for each preset moving distance, preset position, or time, for example. It is monitoring whether or not any of the surrounding features may have been photographed (step S1). At this time, as described above, the processing unit 8 determines whether or not the features on the map located around the moving body may be in the position and direction that can be photographed by the camera 7 at that time. It is monitored while calculating for each.

In the monitoring of step S1, if there is no possibility that any of the features has been photographed (step S1; NO), the processing unit 8 continues to monitor the possibility of photographing the features according to step S1. On the other hand, if there is a possibility that any feature has been photographed in the monitoring of step S1 (step S1; YES), then the determination unit 3 of the processing unit 8 corresponds to the feature that may have been photographed. The feature amount shown by the feature amount data (see FIG. 3B) is collated with the feature amount corresponding to the feature image actually reflected in the live-action data output from the camera 7 (step S2). ), It is determined whether or not there is a difference between them (step S3).

If there is no difference between the two in the determination in step S3 (step S3; NO), the processing unit 8 returns to step S1 and monitors the possibility of photographing the feature. On the other hand, when it is determined in the determination of step S3 that the two feature quantities are different (step S3; YES), the processing unit 8 notifies that fact (a collation result indicating that they do not match) via the interface 1. It is transmitted to the server device SV (step S4). At this time, the processing unit 8 transmits the collation result to the server device SV together with the feature data 90 indicating the features collated in steps S2 and S3 and including the version data and the corresponding position data. Here, the fact that the collation result is transmitted from the navigation device S to the server device SV means that the content of the feature photographed in the monitoring in step S1 is changed due to a signboard or the like. This means that there is a high possibility that the feature data 90 corresponding to the feature needs to be updated.

Next, whether or not the processing unit 8 has received the update data for updating the map data SD of the navigation device S, which is transmitted from the server device SV in response to the collation result transmitted by the process of step S4. Is determined (step S5). If the update data is not received in the determination in step S5 (step S5; NO), the processing unit 8 returns to step S1 and monitors the possibility of feature photography. On the other hand, when the update data is received in the determination in step S5 (step S5; YES), the processing unit 8 updates the corresponding map data SD portion using the received update data (step S6). The processing unit 8 may also store the update data, which is an example of the update information, in the recording unit 9 as an update record.

After that, the processing unit 8 determines whether or not to end the map data update process according to the first embodiment as the navigation device S, for example, when the power of the navigation device S is turned off (step S7). When the map data update process is terminated in the determination in step S7 (step S7; YES), the processing unit 8 ends the process as it is, while the map data update process is not terminated in the determination in step S7 (step S7). ; NO), the processing unit 8 returns to step S1 and monitors the possibility of feature photography.

Next, the map data update process according to the first embodiment in the server device SV corresponding to the map data update process according to the first embodiment in the navigation device S described above will be described with reference to FIG.

That is, as shown in FIG. 5, in the map data update process according to the first embodiment, the processing unit 11 of the server device SV does not match the above from any of the navigation devices S, for example, when the power is turned on. It is monitored whether or not the collation result to that effect is received (step S10). In the monitoring of step S10, when the collation result is not received from any of the navigation devices S (step S10; NO), the processing unit 11 continues to monitor the reception of the collation result.

On the other hand, when the matching result from any of the navigation devices S is received in the monitoring of step S10 (step S10; YES), the processing unit 11 then generates the matching result based on the received matching result. (See step S2 and step S3 above), it is determined whether or not it is necessary to update the map data SD including the feature data 90 for the feature photographed (step S11). Specifically, as the determination in step S11, for example, the contents of the version data of the feature data 90 transmitted together with the collation result (see FIG. 3B) and the recording unit corresponding to the feature data 90. The contents of the version data of the feature data 140 in 14 (see FIG. 4B) are compared, and if they are different, it is determined that the above update is necessary, and if they match, the update is necessary. Judge that there is no sex. Further, even when the feature data 140 in the recording unit 14 corresponding to the feature data 90 transmitted together with the collation result does not exist in the first place, it is determined that the above update is necessary. The contents of the version data and position data of the feature data 90 transmitted together with the collation result (see FIG. 3B) and the feature data 140 in the recording unit 14 corresponding to the feature data 90. Compare the contents of version data, position data, etc. (see FIG. 4B), and if they are different, it is judged that the above update is necessary, and if they match, it is judged that there is no need for update. You may.

If it is determined in step S11 that there is no need to update the map data SD (step S11; NO), the processing unit 11 returns to step S10 and continues to monitor the reception of the collation result. On the other hand, when it is determined in the determination of step S11 that the map data SD needs to be updated (step S11; YES), the processing unit 11 determines the map data VD (for example, the map data VD) corresponding to the feature data SD to be updated. The update data including the map data 140) corresponding to the map data 90 to be updated is generated, and the collation result is transmitted to the navigation device S that has transmitted the update data (step S12). The navigation device S that has received the updated data will then execute the processes of steps S5 to S7.

After that, the processing unit 11 of the server device SV determines whether or not to end the map data update process according to the first embodiment as the server device SV, for example, when the power of the server device SV is turned off. Step S13). When the map data update process is terminated in the determination in step S13 (step S13; YES), the processing unit 11 ends the process as it is, while the map data update process is not terminated in the determination in step S13 (step S13). ; NO), the processing unit 11 returns to step S10 and continues to monitor the reception of the collation result.

As described above, according to the map data update process according to the first embodiment, the feature data 90 included in the map data SD for movement and corresponding to the surrounding features is newly added. The feature data of the photographed feature is compared, and when it is determined that there is a difference between the two, the feature data 90 is transmitted to the server device SV. Then, the map data SD is updated using the updated data only when the updated data is transmitted from the server device SV corresponding to the transmitted feature data 90.

Therefore, the map data SD of the navigation device S is updated only by using the update data generated by determining the necessity of the update in the server device SV, so that the map data SD is updated centrally and accurately. be able to. Further, since the map data SD is updated only when there is a difference between the feature data and the update data is transmitted, the map data SD is updated while reducing the amount of information exchanged with the server device SV. can do. Further, since the map data SD is updated by the update data corresponding to the transmitted feature data 90, the map data SD can be updated according to the route or area to which the navigation device S moves.

Further, since the position data indicating the position of the corresponding feature is included in the feature data 90 transmitted to the server device SV (see FIG. 3B), the change is caused by the position data with a small amount of data. The map data SD can be updated by identifying the existing feature.

Further, since the feature amount data of the live-action data obtained by photographing the corresponding feature is included in the feature data 90, it is possible to accurately identify the changed feature by the live-action data and update the map data SD. it can.

Furthermore, based on the feature amount data in the live-action data of the feature newly photographed by the camera 7, it is determined whether or not there is a difference from the map data 90 recorded in the recording unit 9. The presence or absence of the difference can be accurately determined.

In the first embodiment described above, when the map data SDs used in the plurality of navigation devices S are compared, the map data SDs as a whole may have different generations (versions). There may be incompatibilities between. In such a case, as the map data VD of the server device SV, a plurality of map data VDs are recorded for each generation of the map data SD, and the update data is generated / transmitted for each generation. It is desirable to do.

When a moving image is used as the live-action data, the collation process (see steps S2 and S3 in FIG. 5) in each navigation device S is performed by using continuous still images for a plurality of frame images as the live-action data. In this case, the transmission of the collation result to the server device SV (see step S4 in FIG. 5) is, for example, a predetermined range that can include a position calculated / estimated that the feature to be photographed is photographed as a moving image. Is set in advance, and it is preferable that the movement is performed after the current position of the moving body exceeds the range.

This is because the collation process for a plurality of frame images is continuously performed within the predetermined range, and the collation result is generated after the collation result is out of the range. That is, in the above collation process, the correct collation result is not always obtained in a short time. For example, the feature itself may not be photographed due to the presence of some obstacle, or the collation result may change depending on the photographing direction. In this case, if the moving object does not move outside the above range, the collation result using the live-action data of the moving image cannot be obtained correctly.

In this case, although it depends on the method of the collation processing, if a positive collation result (a collation result in which the feature amount data is considered to match) is obtained even once within the above range, it is generally performed as the step S3. The determination result is "NO". On the other hand, it is considered that the determination result in step S3 is "YES" after the moving body has exited the above range.

It should be noted that, except when the determination result in step S3 using the live-action data of the moving image is “NO” is statistically equal to or more than the predetermined ratio, the collation process in which the determination result is “YES”. Techniques can also be used. In this case, the collation result may be transmitted to the server device SV even if the current position of the moving body is within the above range.

In addition, when the updated feature is emphasized and displayed in the updated map information based on the updated information, it is possible to express the part concretely by limiting it to the feature and emphasizing it. This makes it easier for the user to visually understand the update.

(2) Second Example Next, a second embodiment, which is another embodiment corresponding to the embodiment, will be described with reference to FIG. Note that FIG. 6 is a flowchart showing a map data update process according to the second embodiment. The hardware configuration of the information processing system according to the second embodiment is basically the same as that of the information processing system SS according to the first embodiment. Therefore, in the following description, the operation and the like of the information processing system according to the second embodiment will be described by diverting the member numbers used in the description of the information processing system SS according to the first embodiment. Further, in the flowchart shown in FIG. 6, the same steps as those in the flowchart shown in FIG. 5 are assigned the same step numbers, and detailed description thereof will be omitted.

In the map data update process according to the first embodiment described above, when the server device SV determines that the map data SD of the navigation device S needs to be updated (see step S11; YES in FIG. 5), it immediately responds to it. It was configured to transmit the updated data to the navigation device S. On the other hand, in the map data update process according to the second embodiment described below, when the server device SV determines that the map data SD needs to be updated, only that fact is first notified to the navigation device. The configuration is such that the corresponding update data is transmitted from the server device SV only after the data is transmitted to the S and then the navigation device S requests the update data.

That is, in the map data update process according to the second embodiment, as shown in FIG. 6, when the processes of steps S1 to S4 in the flowchart shown in FIG. 5 are first executed in any of the navigation devices S, as a result, Based on the transmitted collation result, the processing of steps S10 and S11 in the flowchart shown in FIG. 5 is executed in the server device SV.

When it is determined in the determination of step S11 that the map data SD needs to be updated (step S11; YES), the processing unit 11 of the server device SV then notifies the update necessity that the update is necessary. Is transmitted to the navigation device S that has transmitted the collation result in the monitoring in step S10 (step S20). After that, the processing unit 11 monitors whether or not an update request for requesting the update has been transmitted from the navigation device S that has transmitted the update necessity notification (step S21). If the update request is not transmitted from the navigation device S in the monitoring of step S21 (step S21; NO), the processing unit 11 returns to step S10 and monitors the reception of the collation result. On the other hand, when the update request is transmitted in the monitoring of step S21, the processing unit 11 generates the update data including the map data VD corresponding to the feature data SD to be updated corresponding to the update request, and the update data is described. The collation result is transmitted to the navigation device S that has transmitted it (step S12). After that, the processing unit 11 executes the processing of step S13 in the flowchart shown in FIG.

On the other hand, the processing unit 8 of the navigation device S, which has transmitted the collation result by the process of step S4, then determines whether or not the update necessity notification transmitted from the server device SV has been transmitted by the process of step S20. Is monitored (step S15). When the update necessity notification is not received in the monitoring in step S15 (step S15; NO), the processing unit 8 returns to the above step S1 and monitors the possibility of photographing the feature. On the other hand, in the determination of step S15, when the update necessity notification transmitted from the server device SV is received (step S15; YES), the processing unit 8 uses the navigation device S by, for example, outputting to the output unit 2. Has the person (driver, etc.) been notified of the necessity of updating the map data SD, and has the effect of updating the map data SD indicated, for example, based on the operation using the operation unit 4 or the setting of the navigation device S? Whether or not it is determined (step S16, step S17). If the operation is not executed in the determination in step S17 (step S17; NO), the processing unit 8 returns to step S1 and monitors the possibility of photographing the feature. On the other hand, in the determination of step S17, when the operation to update the corresponding map data SD is executed (step S17; YES), the processing unit 8 transmits the update request corresponding to the update to the server device SV (step S17; YES). Step S18).

After that, the processing unit 8 executes the processes of steps S5 to S7 in the flowchart shown in FIG. 6 to update the map data SD.

As described above, according to the map data update process according to the second embodiment, in addition to the action and effect of the map data update process according to the first embodiment, an operation to update using the operation unit 4 is performed. When executed in the navigation device S (step S17 in FIG. 6; YES), the map data SD is updated using the update data received from the server device SV, so that the intention of the user (driver, etc.) of the navigation device S. The map data SD can be updated accordingly.

(3) Third Example Next, a third embodiment, which is still another embodiment corresponding to the embodiment, will be described with reference to FIG. 7. Note that FIG. 7 is a flowchart showing a map data update process according to the third embodiment. The hardware configuration of the information processing system according to the third embodiment is basically the same as that of the information processing system SS according to the first embodiment. Therefore, in the following description, the operation and the like of the information processing system according to the third embodiment will be described by diverting the member numbers used in the description of the information processing system SS according to the first embodiment. Further, in the flowchart shown in FIG. 7, the same steps as those in the flowchart shown in FIG. 5 are assigned the same step numbers, and detailed description thereof will be omitted.

In the map data update processing according to the first embodiment and the second embodiment described above, the map data SD of each navigation device S is updated by transmitting the update data from the server device SV, respectively. In the third embodiment described below, in addition to updating the map data SD, the map data VD recorded in the server device SV is updated using the live-action data taken by the navigation device S. May be.

That is, in the map data update process according to the third embodiment, as shown in FIG. 7, first, the processes of steps S1 to S6 in the flowchart shown in FIG. 5 are executed in any of the navigation devices S. In parallel with this, in the server device SV according to the third embodiment, the processes of steps S10 to S13 in the flowchart shown in FIG. 5 are executed.

Next, when the processing unit 11 of the server device SV according to the third embodiment determines that there is no need to update the map data SD in the determination in step S11 (step S11; NO), the processing unit 11 in step S10. It is determined whether or not to transmit the live-action data related to the collation process (see steps S2 and S3) corresponding to the collation result transmitted in the monitoring to the navigation device S that has transmitted the collation result (step S27). .. The determination process in step S27 will be described in detail later.

In the determination of step S27, when the live-action data related to the collation process corresponding to the received collation result is not transmitted (step S27; NO), the processing unit 11 returns to the step S10 and continues to monitor the reception of the collation result. .. On the other hand, when the live-action data is transmitted in the determination in step S27 (step S27; YES), the processing unit 11 requests the corresponding navigation device S to transmit the live-action data to the server device SV. Is transmitted (step S28). Next, the processing unit 11 monitors whether or not the live-action data corresponding to the live-action data request has been transmitted from the navigation device S (step S29). In the monitoring of step S29, for example, when the live-action data is not transmitted even after a lapse of a predetermined time (step S29; NO), the processing unit 11 processes the process of step S28 to transmit the live-action data request to the navigation device S again. Return to. On the other hand, in the monitoring of step S29, when the desired live-action data is transmitted (step S29; YES), the transmitted live-action data is used to map data VD (more specifically, map data VD). The corresponding feature data 140) in the above is updated (step S30). After that, the processing unit 11 shifts to the determination in step S13 in the flowchart shown in FIG.

Correspondingly, the processing unit 8 of the navigation device S monitors whether or not the live-action data request has been transmitted from the server device SV after updating the map data SD portion by the process of step S6 (step S6). Step S25). If the live-action data request is not transmitted in the monitoring in step S25 (step S25; NO), the processing unit 8 returns to step S1 to monitor the possibility of photographing the feature. On the other hand, in the determination of step S25, when the live-action data request transmitted from the server device SV is received (step S25; YES), the processing unit 8 receives the live-action data corresponding to the received live-action data request (in other words, the above step). The live-action data captured by the processing of S1) is transmitted to the server device SV (step S26), and then the processing unit 8 shifts to the determination of step S7 in the flowchart shown in FIG.

Next, the determination process in step S27 in the processing unit 11 of the server device SV will be specifically described.

In the determination in step S27, for example, when the determination result in step S11 becomes "NO", it is necessary to immediately transmit the live-action data related to the collation result transmitted in the monitoring in step S10. It is conceivable to make a determination (step S27; YES). That is, the contents of the version data, the position data, etc. of the feature data 90 transmitted together with the collation result, and the contents of the version data, the position data, etc. of the feature data 140 in the recording unit 14 corresponding to the feature data 90. If the above matches, it is determined that it is necessary to transmit the above-mentioned live data. In this case, the map data VD recorded in the server device SV can be updated because the collation result indicating that the above mismatches are received even though the version data and the like of the two match. It is judged that there is sex.

Further, other conditions may be imposed in addition to the case where the determination result in step S11 is "NO". More specifically, it is a collation result for a feature not included in the map data 140 of the map data VD, or a collation result for a feature for which data as the feature data 140 is being collected. That (in other words, for a feature for which sufficient data has already been collected, the transmission of the corresponding live-action data is not required) may be added as a condition.

Here, the feature that is "collecting data" as the feature data 140 is related to the fact that the collation result received in the monitoring in step S10 may be incorrect. That is, in the collation process in the navigation device S according to the embodiment (see steps S2 and S3 above), the features of the feature to be collated may temporarily not be correctly collated only at a certain timing. In, even if the feature to be collated is immutable, there may be a case where the collation result is inconsistent (in other words, the collation result indicating that the collation is inconsistent is incorrect). At this time, the above-mentioned "correctly collated" condition is, for example, when there is an obstacle in the shooting range of the camera 7, the feature itself is under construction and it is hidden and cannot be photographed, or the ground. For example, when an object is exposed to direct sunlight and it is not possible to take a clear picture. In such a case, it is considered appropriate for the server device SV to update the so-called "statistically" feature data VD. That is, as the data included in the feature data 140, the data is treated as a series of data until a certain number of data are collected as a population, and the data is "target of update candidate in the feature data 140". It is treated (managed) as.

Further, as another condition in the determination in step S27, for example, from the timing when the acquisition of the data in the server device SV as the feature data 140 is finished, the feature data VD is updated using at least a plurality of acquired data. By the time the determination is made (see step S27 and step S29 above), the collation result indicating that the feature corresponding to the feature data 140 to be determined is inconsistent with the other navigation device S (above). Even if step S3; see YES) is transmitted, it is conceivable that the live-action data is unnecessary.

Further, as the determination in step S27, the following five conditions may be weighted into consideration.
(I) Performance and shooting conditions of camera 7 (so-called camera parameters)
(II) Shooting date and time, weather, direction and position of camera 7 (estimation of the appearance of features)
(III) Whether or not the feature is prone to collation errors in the navigation device S (if there is data indicating it)
(IV) Load status in the processing unit 11 of the server device SV and load status of the network W (V) Communication status such as transmission of past collation results from each navigation device S Of these, (I) and (II) above. By adding the above-mentioned consideration condition, it is possible to estimate the appearance of the feature in the live-action data and the "accuracy" of the corresponding collation processing. In addition, by adding the consideration condition of (III) above, statistical results such as "the accuracy of collation processing is generally low" may be obtained from past cases of collation results. Then, these "accuracy" can be used as a basis for determining whether or not the corresponding live-action data is worth acquiring in the server device SV, and if this accuracy is higher than a predetermined value, the live-action data should be transmitted. Can be determined. On the other hand, depending on the situation of other loads in the information processing system SS, it may be determined that it is currently difficult or (in terms of service) to update the map data VD. In this case, the above (IV) And, by adding the consideration condition of (V), it can be one of the criteria for determining not to transmit the live-action data in the case of "currently difficult or unreasonable".

Further, in the update process of the map data VD using the live-action data according to the step S30, the update process may be configured to be automatically executed by the processing unit 11, or has been transmitted (step). (See S29; YES) By displaying the live-action data on the display 12, the server device SV may be configured to be performed with the judgment of the user (administrator, etc.).

As described above, according to the map data update process according to the third embodiment, in addition to the effects of the map data update process according to the first embodiment, only when there is a live data request from the server device SV. Since the live data is transmitted from the navigation device S to the server device SV, for example, the live data is used for updating the map data VD in the server device SV while reducing the amount of data related to communication on the network W. Can be made to.

(4) Fourth Example Next, a fourth embodiment, which is still another embodiment corresponding to the embodiment, will be described with reference to FIG. Note that FIG. 8 is a flowchart showing a map data update process according to the fourth embodiment. The hardware configuration of the information processing system according to the fourth embodiment is basically the same as that of the information processing system SS according to the first embodiment. Therefore, in the following description, the operation and the like of the information processing system according to the fourth embodiment will be described by diverting the member numbers used in the description of the information processing system SS according to the first embodiment. Further, in the flowchart shown in FIG. 8, the same steps as those in the flowchart shown in FIG. 7 are assigned the same step numbers, and detailed description thereof will be omitted.

In the map data update processing according to the first to third embodiments described above, the actual image data taken by the camera 7 of any of the navigation devices S is used to obtain the feature data 90 included in the map data SD. Differences from the actual conditions of the feature were collated (see steps S2 and S3 above). On the other hand, in the fourth embodiment described below, the current position of the moving body provided with the road data 91 and the navigation device S in the map data SD based on the current position data from the sensor unit 6 of the navigation device S and the like. The road data 91 is updated as necessary by collating with the position.

That is, in the map data update process according to the fourth embodiment, as shown in FIG. 8, first, in the processing unit 8 of any of the navigation devices S, for example, for each preset movement distance or time, the current position data and the like are described. Based on the above, the current position of the moving body or the route that has been moved is collated with the position of the road indicated by the road data 91 (step S35), and it is determined whether or not there is a difference between them (step S36). Here, the fact that there is a difference between the two in the determination in step S36 (step S36; YES) means that, for example, the moving body is moving on a new road that is not included in the road data 91.

If there is no difference between the two in the determination in step S36 (step S36; NO), the processing unit 8 returns to step S35 and continues collation with the road data 91. On the other hand, when it is determined in the determination of step S36 that they are different from each other (step S36; YES), the processing unit 8 indicates that the collation result (that it is located on the road that is not in the road data 91). And the current position data at that time, etc.) are transmitted to the server device SV via the interface 1 (step S4). After that, the processing unit 8 performs the processing of steps S5 to S7 and steps S25 and S26 in the flowchart shown in FIG.

At this time, in the process of step S5, the update data for updating as new road data different from the road data 91 is received, and the new road data is additionally updated by the process of step S6 using the update data. Become. The live-action data transmitted to the server device SV as the process of step S26 is the live-action data of the feature near the road taken by the camera 7 during the collation processing of steps S35 and S36. Further, as the live-action data, for example, the live-action data of the feature taken by the camera 7 immediately before it is determined that the two do not match in the determination in step S36 (see step S36; YES), or the inconsistency. Either the live-action data of the feature taken immediately after the determination is made or the live-action data of the feature taken during the determination is transmitted.

On the other hand, the processing unit 11 of the server device SV in the map data update processing according to the fourth embodiment is basically the same as the processing unit 11 of the server device SV in the map data update processing according to the third embodiment. The processes of steps S10 to S13 and steps S27 to S30 are executed.

At this time, in the determination in step S11, the processing unit 11 determines whether or not the road data 141 including the current position included in the collation result received in the monitoring in step S10 is included in the map data VD. judge. Then, when the road data 141 including the current position included in the collation result is included in the map data VD, this is transmitted to the navigation device S as update data (step S11; YES and step S12). ).

Further, in the determination process of step S27, the processing unit 11 immediately performs the determination process of step S10 when the determination result of step S11 becomes "NO", as in the determination process of step S27 as the third embodiment. It may be determined that it is necessary to transmit the live-action data related to the collation result transmitted in the monitoring (step S27; YES). That is, when there is no road data at the position indicated by the current position data or the like transmitted together with the collation result (see step S11; NO), it is determined that the live-action data needs to be transmitted. In this case, it means that the collation result indicating that the moving object is moving even though the road corresponding to the position indicated by the transmitted current position data etc. is not on the map is received, so that the server It is determined that it is necessary to update the road data 141 of the map data VD recorded in the device SV.

Further, when the determination result in step S11 is "NO", it is the same as in the case of the third embodiment i) It is a collation result for a road not included in the road data of the map data VD, or When the condition that the data as the new road data is the collation result for the feature for which the data is being collected is further satisfied, the live data may be transmitted. The meaning of "collecting data" in this case is the same as in the case of the third embodiment. Further, as the determination in step S27, the five consideration conditions described in the third embodiment may be weighted.

Furthermore, as the process of step S30 of the fourth embodiment, the map data VD including the new road data is updated using the transmitted live-action data.

As described above, according to the map data update process according to the fourth embodiment, in addition to the effects and effects of the map data update process according to the first embodiment and the third embodiment, the map data SD using the update data And since the update of the new road data is performed while the navigation device S is moving, the movement can be performed using the updated map data SD and the new road data.

(5) Fifth Example Next, a fifth embodiment, which is still another embodiment corresponding to the embodiment, will be described with reference to FIG. Note that FIG. 9 is a flowchart showing a map data update process according to the fifth embodiment. The hardware configuration of the information processing system according to the fifth embodiment is basically the same as that of the information processing system SS according to the first embodiment. Therefore, in the following description, the operation and the like of the information processing system according to the fifth embodiment will be described by diverting the member numbers used in the description of the information processing system SS according to the first embodiment. Further, in the flowchart shown in FIG. 9, the same steps as those in the flowchart shown in FIG. 5 are assigned the same step numbers, and detailed description thereof will be omitted.

In the map data update processing according to the first to fourth embodiments described above, various data (for example, live-action data) acquired by any of the navigation devices S are used and recorded in the navigation device S. The map data VD recorded in the existing map data SD or the server device SV has been updated. On the other hand, in the fifth embodiment described below, the road data 91 of the map data SD is updated based on the guide location data indicating the guide location included in the movement guidance route set in the navigation device S. The configuration is to be used.

That is, as shown in FIG. 9, in the map data update process according to the fifth embodiment, the processing unit 8 of the navigation device S indicates a route for guiding the movement of the moving body on which the navigation device S is mounted. The data is set, for example, by a predetermined route search method (step S40). This route data includes departure point data indicating the position of the departure point as the route, destination data indicating the position of the destination as the route, and the position of the guide point to be routed to the destination. The guide location data to be shown is included.

Next, the processing unit 8 transmits, for example, the guide location data to the server device SV among the route data generated by the processing in step S40 (step S41). At this time, the destination data may be transmitted at the same time. After that, the processing unit 8 executes the processing of steps S5 to S7 in the flowchart shown in FIG. At this time, the processing unit 8 receives the update data about the guide location data transmitted by the process of step S41 when it is transmitted from the server device SV (step S5; YES), and uses the received update data. And update the map data SD (step S6).

On the other hand, in the map data update process according to the fifth embodiment, the processing unit 11 of the server device SV receives the guide location data or the like from any of the navigation devices S when the power of the server device SV is turned on, for example. It monitors whether or not it has been done (step S45). In the monitoring of step S45, when the guide location data or the like is not received from any of the navigation devices S (step S45; NO), the processing unit 11 continues to monitor the reception of the guide location data or the like.

On the other hand, when the above-mentioned guide location data or the like from any of the navigation devices S is received in the monitoring of step S45 (step S45; YES), the processing unit 11 then determines the guide location based on the received guide location data or the like. By searching the map data VD for the guide site, etc. included in the data, etc., and confirming whether or not new feature data 140, etc. is recorded for the guide site, etc., the feature data for the guide site, etc. It is determined whether or not it is necessary to update the map data SD including 90 (step S11).

When it is determined that there is no need to update the map data SD in the determination in step S11 as the fifth embodiment (step S11; NO), the processing unit 11 returns to step S10 to receive the guide location data and the like. Continue to monitor. On the other hand, when it is determined in the determination of step S11 that the map data SD needs to be updated (step S11; YES), the processing unit 11 has the map data corresponding to the guide location data in the feature data SD to be updated. The update data including the guide location data of the VD is generated, and the guide location data and the like are transmitted to the navigation device S that has transmitted the data (step S12). The navigation device S that has received the updated data will then execute the processes of steps S5 to S7.

After that, the processing unit 11 of the server device SV executes the process of step S13 in the flowchart shown in FIG.

As described above, according to the map data update process according to the fifth embodiment, in addition to the action and effect of the map data update process according to the first embodiment, the update of the map data SD using the update data is the route setting. Since it is performed at the time of, it is possible to set a route for movement and provide guidance using the route using the updated map data SD.

Here, in the map data update process according to the fifth embodiment described above, as a result, the data of the facility that is each target (guidance site) in the guidance using the route is often updated, but other than this. For example, it is determined whether or not the map data SD related to the route or other facilities within a certain geographical range from the destination is updated based on the type of the facility serving as the guide destination (see step S56 in FIG. 9). ) And its update. More specifically, for example, for recommended tourist facilities (spots), evacuation facilities, etc., it may be determined whether or not the corresponding map data SD is updated. Further, the above-mentioned certain geographical range in this case can be configured to be changed based on the above-mentioned type of other facilities and the like.

(6) Sixth Example Finally, a sixth embodiment, which is still another embodiment corresponding to the embodiment, will be described with reference to FIG. Note that FIG. 10 is a flowchart showing a map data update process according to the sixth embodiment. The hardware configuration of the information processing system according to the sixth embodiment is basically the same as that of the information processing system SS according to the first embodiment. Therefore, in the following description, the operation and the like of the information processing system according to the sixth embodiment will be described by diverting the member numbers used in the description of the information processing system SS according to the first embodiment. Further, in the flowchart shown in FIG. 10, the same process as the flowchart shown in FIG. 5 or the flowchart shown in FIG. 9 is given the same step number, and detailed description thereof will be omitted.

In the map data update processing according to the first to fourth embodiments described above, various data (for example, live-action data) acquired by any of the navigation devices S are used and recorded in the navigation device S. The map data VD recorded in the existing map data SD or the server device SV has been updated. On the other hand, in the sixth embodiment described below, the map data SD is updated based on the route data or the like indicating the route set in the navigation device S.

That is, as shown in FIG. 10, in the map data update process according to the sixth embodiment, the processing unit 8 of the navigation device S executes the process of step S40 in the flowchart shown in FIG. Next, the processing unit 8 transmits the route data itself generated by the processing in step S40 to the server device SV (step S50). The transmission timing as step S50 may be, for example, immediately after the search for the route, or after the search result is approved by the user (driver or the like) of the navigation device S.

After that, the processing unit 8 monitors whether or not the re-search result corresponding to the transmitted route data and the updated data corresponding to the re-search result have been transmitted from the server device SV (step S51). When the re-search result or the like is not transmitted in the monitoring of step S51 (step S51; NO), the processing unit 8 shifts to the processing of step S52 described later, and uses the route data generated by the processing of step S40. Guidance on the route of the moving body.

On the other hand, in the monitoring of step S51, when the re-search result or the like is transmitted (step S51; YES), the processing unit 8 updates the map data SD using the transmitted update data (step S6). ), And further, the route guidance of the moving body is performed using the route data included in the re-search result (step S52). After that, the processing unit 8 executes the processing of step S7 in the flowchart shown in FIG.

On the other hand, in the map data update process according to the sixth embodiment, the processing unit 11 of the server device V receives the route data from any of the navigation devices S, for example, when the power of the server device SV is turned on. Whether or not it is monitored (step S55). In the monitoring of step S55, when the route data is not received from any of the navigation devices S (step S55; NO), the processing unit 11 continues to monitor the reception of the route data.

On the other hand, when the route data from any of the navigation devices S is received in the monitoring of step S55 (step S55; YES), the processing unit 11 is then indicated by the route data based on the received route data. It is verified whether or not the route is optimal in light of the map data VD recorded in the server device SV at that time (step S56). More specifically, the processing unit 11 searches for a route again using the departure point data and the destination data included in the transmitted route data, and is the same as the content of the route data received in the monitoring in step S55. Determine if it is a route. At this time, it is also determined whether or not there is a road that is no longer usable in the route searched by the navigation device S. Then, when the content of the route data received in the monitoring in step S55 is the same as the content of the route searched again (step S56; NO), the processing unit 11 returns to step S55 to receive the route data. Continue monitoring. In this case, the same fact may be transmitted to the navigation device S that has transmitted the route data in the monitoring in step S55.

On the other hand, when the contents of both route data are different in the determination of step S56 (step S56; YES), the processing unit 11 uses the route data indicating the route searched again as the re-search result in the monitoring of step S55. The route data is transmitted to the navigation device S that has transmitted the route data (step S57). At this time, if there is a road that is no longer available in the route data received in the monitoring in step S55, the processing unit 11 also transmits to that effect and related update data. After that, the processing unit 11 executes the processing of step S13 in the flowchart shown in FIG.

In the map data update process according to the sixth embodiment described above, if the re-search result or the like transmitted from the server device SV is not sufficient to update the map data SD of the navigation device S, the navigation device The processing unit 8 of S requests and acquires the update data of the insufficient part (for example, the missing road data 91, etc.) from the server device SV again, and uses it to update the map data SD. May be good.

Further, in the map data update process according to the sixth embodiment described above, the route data transmitted from the navigation device S (see step S50 above) includes incidental information such as an instruction to proceed on the road and a change depending on the time zone. It may be included. Further, the incidental information may include version data of map data 91 indicating a guide location included in the route data. In this case, the processing unit 11 of the server device SV determines whether or not the map data VD is the latest including the incidental information, and if the updated data is in the map data VD, updates them. May be transmitted to the navigation device S to update the map data SD.

As described above, the map data update process according to the sixth embodiment can also have the same effect as the map data update process according to the fifth embodiment.

Next, a modified example according to the embodiment will be described.

(7) First Modified Example First, the first modified example will be described. In the first to third embodiments described above, for example, it was decided that the camera 7 would take a picture of the feature at each preset movement distance or time to perform collation, but in addition to this, the navigation device S is mounted. It can also be configured to collate features during guidance using a route to a moving object.

More specifically, in general, during route guidance, guidance is provided including easy-to-understand information on surrounding features for each guidance location. For example, a voice guidance such as "Turn left at an intersection 30 meters ahead, XX (facility name)" is given. Normally, at each intersection, there are multiple facilities that are candidates for guidance facilities at each corner, and it is said that the user (driver, etc.) can easily see the moving object based on the current moving direction and turning direction of the moving body. The one is selected as a guide facility on the route. The data of these guidance facilities and their candidate facilities are known at the time of route setting. In addition, after setting a guide site, when approaching the guide site, the facility actually used for guidance may be determined from the facilities around the guide site.

Therefore, when approaching a certain guide point, a collation process with the map data SD regarding one facility used for guidance at the guide point or a plurality of facilities including the candidate thereof (see steps S2 and S3 above). It is conceivable to do. In this case, the collation process is performed using live-action data within a range that can be calculated / estimated that the facility can be photographed from the camera 7 and can be used for the collation process in principle. In this case, the geographical range to be collated may be set in advance. Then, the transmission to the server device SV using the collation result is performed after moving out of the geographical range, for example.

Then, when the update data for the facility is transmitted from the server device SV as a result of transmission to the server device SV, the map data SD of the navigation device S is updated using the update data (step S6). reference).

According to the configuration of the first modification as described above, the map data SD of the facility used for guiding the moving body can be mainly updated, and the amount of communication with the server device SV can be suppressed.

(8) Second Modified Example Next, a second modified example will be described with reference to FIG. Note that FIG. 11 is a flowchart showing the map data update process according to the second modification. The hardware configuration of the information processing system according to the second modification is basically the same as that of the information processing system SS according to the first embodiment. Therefore, in the following description, the operation of the information processing system according to the second modification will be described by diverting the member numbers used in the description of the information processing system SS according to the first embodiment.

In each of the above-described embodiments and the first modification, the update process of the map data SD or the map data VD is started when the collation result from any of the navigation devices S is received by the server device SV. At this time, the corresponding feature data 140 or feature data 50 may not be updated for a long period of time due to various causes such as a feature existing in a place where people do not stop by very much. This is not particularly preferable as a map data VD having a position as master map data.

Therefore, in the map data update process according to the second modification, a feature whose corresponding feature data 140 is not updated for a long period of time is specified by the server device SV at regular intervals, and the feature is updated from each navigation device S. The feature data of the above is collected and the feature data 140 is updated. The map data update process according to the second embodiment is a process executed as an interrupt process when, for example, the map data update process according to each embodiment is used as the main routine. Further, as the feature data 140 according to the second modification, time data indicating the timing at which they are updated is recorded in the recording unit 14 for each feature in association with the local feature ID.

Specifically, in the map data update process according to the second modification, the features corresponding to the feature data 140 that are not updated for a long period of time are specified and listed at regular intervals. In the following description, the list will be referred to as an "update list". This update list is non-volatilely recorded in the recording unit 14 of the server device SV.

That is, as shown in FIG. 11A, as the map data update process according to the second modification, the processing unit 11 of the server device SV sets a preset timing as a timing for specifying the feature data 140 that is not updated for a long period of time. Is being monitored (step S60). As the timing to be specified at this time, the processing unit 11 periodically sets an interval of about once every several weeks as the timing to be specified.

When the timing to be specified has not arrived in the monitoring of step S60 (step S60; NO), the processing unit 11 returns to the original main routine. On the other hand, when the timing to be specified in the monitoring of step S60 arrives (step S60; YES), the processing unit 11 next determines whether or not the list processing has been completed for all the features (step S60). S61), if completed (step S61; NO), the process returns to the original main routine.

On the other hand, when there is a feature whose listing process has not been completed (step S61; YES), the processing unit 11 then reads the time data indicating the latest update timing for the feature from the recording unit 14. (Step S62) Next, it is determined whether or not the current time is a time when a predetermined period (for example, about several weeks) has elapsed from the read update timing (step S63). In the determination of step S63, if the current time is not the time when the predetermined period has elapsed (step S63; NO), it is assumed that the list for updating the feature data 140 corresponding to the feature is unnecessary, and the processing unit 11 returns to the original main routine. On the other hand, in the determination of step S63, when the current time is the time when the predetermined period has elapsed (step S63; YES), the processing unit 11 adds the feature to the update list (step S64), and further the next land. The feature ID is incremented by "1" (step S65) in order to repeat the process after step S61 for the object, and the process proceeds to the process of step S61. By repeating the above steps S60 to S65 for all the features, an update list including the features corresponding to the feature data 140 that is not updated for the predetermined period is generated.

Next, the update process of the feature data 140 using the update list will be specifically described with reference to FIG. 11 (b). As shown in FIG. 11 (b), as the update process of the feature data 140 according to the second embodiment, the processing unit 11 of the server device SV, for example, in parallel with the update list generation process shown in FIG. 11 (a). , It is monitoring whether or not there is any communication from any of the navigation devices S (step S70). The communication in step S70 includes not only receiving the collation result in each of the above embodiments, but also other communication capable of identifying the navigation device S as the transmission source. If there is no communication in the determination in step S70 (step S70; NO), the processing unit 11 returns to the original main routine. On the other hand, when there is some communication in the determination of step S70 (step S70; YES), the processing unit 11 next identifies whether or not the navigation device S, which is the communication source, supports the update of the feature data 140. (Step S71), if not supported (Step S71; NO), the process returns to the original main routine.

On the other hand, in the identification of step S71, when the navigating device S communicating corresponds to the update of the feature data 140 (step S71; YES), the processing unit 11 then uses the navigation device S for movement guidance. Whether or not a route (route data) is set is determined by using, for example, the received collation result or the like (step S72). When a route is set in the navigation device S in the determination in step S72 (step S72; YES), the processing unit 11 is a feature on the set route or in an area along the route. The features currently included in the update list are listed by the corresponding feature ID (step S73). On the other hand, in the determination of step S72, when the above route is not set (step S72; NO), the processing unit 11 has, for example, a default geographical centered on the current position of the moving body on which the navigation device S is mounted. Features that are within the range or in the administrative division to which the current position belongs and are currently included in the above update list are specified and listed by the corresponding feature ID (step). S74).

Next, the processing unit 11 communicates the data corresponding to the list (including the corresponding feature ID) generated by the process of step S73 or the process of step S74 in the monitoring of step S70. (Step S75).

The processing unit 8 of the navigation device S that has received the data has the feature data 50 recorded by the navigation device S for the feature whose list corresponding to the received data includes the feature ID. Or, the feature data 50 accompanied by the live-action data taken by the camera 7 or the like of the navigation device S is transmitted to the server device SV.

After transmitting the data corresponding to the list generated by the process of step S73 or the process of step S74, the processing unit 11 of the server device SV receives the feature data 50 corresponding to the list from the navigation device S of the transmission destination. It monitors whether or not it has been transmitted (step S76). If the corresponding feature data 50 is not transmitted in the monitoring of step S76 (step S76; NO), the processing unit 11 returns to the original main routine, and if it is transmitted on the other hand (step S76; YES), the processing The unit 11 updates the feature data 140 of the corresponding feature (feature data 140 that has not been updated for a long period of time) and the map data VD related thereto by using the contents of the transmitted feature data 50. (Step S77). After that, the processing unit 11 returns to the original main routine. By executing the above steps S70 to S77 every time some communication is performed with the navigation device S, the feature data 140 that is not updated for the predetermined period is a map transmitted from the navigation device S. It will be updated by the data 50.

According to the map data update process according to the second modification described above, the corresponding feature data 140 extracts a feature that is not updated for a specified period, and the navigation device S corresponds to the feature ID indicating the feature. Since the map data VD including the feature data 140 is updated by using the transmitted feature data 50, the map data VD can be updated at each specified period.

In addition to periodically checking all the features and listing them each time as described with reference to FIG. 11A, as another example of the above update list generation, for example, first all the features. It is also possible to generate a (temporary) update list for each feature and update it individually for each feature.

More specifically, for example, in the update list created once at the beginning, the processing unit 11 arranges the feature data 140 in the order of the latest update date and time, and updates the feature data 140 for each feature (that is, from the navigation device S). Update using the feature data 50 of the above) is performed at any time. Then, when one feature data 140 is updated, the order of the feature data 140 in the existing update list is changed based on the updated date and time. By doing so, it is possible to maintain the state in which the update list in which the old and new update dates can be found at a glance is recorded in the recording unit 14.

Further, in the update list created first, the processing unit 11 sequentially expands the range of the feature data 140 to be updated so as to sequentially include the latest update date and time later in time at regular intervals. A method of updating the feature data 140 to be updated at that time using the feature data 50 from the navigation device S is also conceivable.

Further, a program corresponding to the flowchart shown in FIGS. 5 to 10 is recorded on a recording medium such as a flexible disk or a hard disk, or acquired via a network such as the Internet, and this is obtained by a general-purpose microcomputer. It is also possible to make the microcomputer function as the processing unit 8 and the processing unit 11 according to the embodiment by reading and executing the microcomputer or the like.

(9) Operation of Information Notification Next, the operation of information notification will be described with reference to FIGS. 12 to 14.

First, in the navigation device S, which is an example of the information notification device, the user inputs a keyword or the like for performing a route search via the operation unit 4.

Next, as shown in FIG. 12, the navigation device S performs a route search (step S80). Specifically, the processing unit 8 of the navigation device S performs a route search based on the input information. The navigation device S may search for a store, a place, or the like related to the keyword based on the keyword input by the user, and may search for a map showing the store, the place, or the like. Further, with respect to the searched route (an example of the set guide route), the navigation device S may inquire the server device SV whether or not there is update information on the searched route. Here, the feature information existing on the searched route is an example of the specified feature information. Then, when the navigation device S inquires and has the update information, the navigation device S may acquire the update information from the server device SV.

Next, the navigation device S determines the display location of the route (step S81). Specifically, the processing unit 8 of the navigation device S determines the display location to be displayed on the output unit 2 from the search result of the route. For example, display of the entire route from the current location to the destination, display of the vicinity of the destination, display of important points in the route in the middle, and the like can be given as an example of the display location. The display location may be a map or the like near a store or location related to the keyword. The display location of the route is an example of the specified feature information. The display location is an example of map information of the output portion.

Next, the navigation device S determines whether or not there is an updated feature at the display location (step S82). Specifically, the processing unit 8 of the navigation device S refers to the recording unit 9 and determines whether or not there is an updated feature in the feature at the display location based on the update information. The navigation device S may make a determination only for the updated information that has been updated within a predetermined period from the present. Further, the navigation device S determines whether or not the update information regarding the feature information related to the set guide route exists.

When there is an updated portion in the displayed portion (step S82; YES), the navigation device S notifies the updated feature and displays the route (step S83). Specifically, as shown in FIG. 13, the processing unit 8 of the navigation device S simultaneously displays the map information 21 before the update and the map information 22 after the update on the output unit 2. In the output unit 2, in the area of the map information 21 before the update, the information of the road guide sign before the update (an example of the feature information before the update) is displayed. In the output unit 2, the updated map information 22 area displays the updated road guide sign information (an example of the updated feature information). In the area of the map information 22, as an example of the updated feature, the newly created road 23, the destination name 24, and the road sign 25 are highlighted and displayed. For example, the road 23 is displayed in a prominent color, blinking, or the like. The destination name 24 is displayed in large size. Further, the navigation device S may notify the update information from the speaker of the output unit 2 by a voice indicating that there is a new road.

Further, as shown in FIG. 14, the navigation device S may display the map information before the update and the map information after the update on the output unit 2 with a time lag. For example, as shown in FIG. 14A, the navigation device S first displays the map information before the update. As shown in FIG. 14B, the navigation device S displays the map information in the intermediate state. As the map information in the intermediate state, the road 26 in the intermediate display state and the name 37 of the destination in the intermediate display state are displayed in the output unit 2. Then, as shown in FIG. 14C, the navigation device S displays the updated map information in which the road 23 and the destination name 24 are displayed. That is, the navigation device S may display the map information before the update as a crossfade that fades out and the map information after the update as a fade-in.

It should be noted that the map information before the update as shown in FIG. 14 (a) is simply changed to the map information after the update as shown in FIG. 14 (c) without going through the intermediate state as shown in FIG. 14 (b). It may be switched.

Further, the display may be switched from the map information before the update to the map information after the update as if the screen is wiped. Further, after switching, the updated feature may be blinked.

Further, the navigation device S shows the map information before the update as shown in FIG. 14A, and then arranges the map information before the update and the map information after the update for a certain period of time as shown in FIG. The map information may be displayed and the updated map information may be displayed on the output unit 2 as shown in FIG. 14 (c).

Further, the switching may be a combination of fade, wipe, highlighting and the like.

When there is no updated feature in the display location (step S82; NO), the navigation device S displays a normal route (step S84).

As described above, since the update information can be acquired from the server device that updated the map information and the update information can be notified to the user, the user can recognize the update of the map information. In addition, when the feature information included in the terminal device map information stored in the terminal device and the feature information newly acquired in the terminal device are different in the terminal device, the map Since the updated information is obtained from the server device that updates the information, the accuracy of the updated information is improved, and the user can recognize the highly accurate map information. Update information is notified, and if there is no update, it is not necessary to notify, so the information can be announced without waste. In addition, if the updated information in the notification means is notified and the updated information is known, the user can pay attention only to the updated information.

In addition, since the updated information is announced regarding the road used by the user or the road to be used, the updated information can be effectively announced. In addition, the user can confirm in advance changes in the facilities of the road to be passed. Since it can be confirmed in advance, the user will be aware that he / she will always guide you to new map information. That is, the reliability of the map information is improved, and the user can drive comfortably.

In addition, when the server device SV is inquired about whether or not the updated information exists for the specified feature information, and when the updated information exists, the user can easily pay attention to the updated information from the server device SV. With regard to physical information, it is possible to efficiently acquire updated information and notify the user.

In addition, when determining whether or not the updated information exists in the map information of the output part and notifying the updated information based on the determination result, the map information is based on the feature information collected from each terminal device. Since the update information can be acquired from the updated server device and the existing update information can be notified to the user when the map information is output, the user can recognize the map information with high accuracy.

Further, when determining whether or not there is updated information on the feature information related to the set guide route, it becomes easier to recognize the updated feature information on the route.

In addition, when the map information before the update and the map information after the update are displayed at the same time or with a time lag based on the update information, it is possible to compare the map information before the update and the map information after the update, and the user recognizes the update location. It will be easier to do. Since the map information before the update and the map information after the update are displayed in parallel or in chronological order, the user can confirm that the map is the latest. As a result, it can be expected that the user's sense of trust in the map data will be improved. Further, by notifying the update information about the place where the user is moving, the user can actually confirm the changed feature at the place.

In addition, when acquiring update information related to map information update from a server device that updates map information based on feature information transmitted from the terminal device, timely update information collected from the terminal device is provided. It can also provide highly accurate update information collected from terminal devices.

In addition, when displaying the feature information before the update and the feature information after the update at the same time or with a time lag based on the update information, it is possible to compare and recognize before and after the update based on the specific feature information. It will be easier.

In addition, when the updated feature is emphasized and displayed in the updated map information based on the updated information, it is possible to express the part concretely by limiting it to the feature and emphasizing it. This makes it easier for the user to visually understand the update.

Next, a modified example of the display of the information notification will be described with reference to FIGS. 15 and 16.

As shown in FIG. 15, in the three-dimensionally displayed road information, the navigation device S may emphasize the updated feature 28. Further, the updated portion may be emphasized by the balloon display 29 so as to be conspicuous.

Further, as shown in FIG. 16, when a new feature (for example, a road or a tunnel) is formed on the searched route, the navigation device S sets the updated road 30 with respect to the updated road. The updated part may be displayed by changing the color, changing the thickness, blinking, or adding the balloon display 29.

If there is an updated feature in the vicinity of the searched route, the navigation device S may notify the updated feature even if the navigation device S is not on the route.

Further, the navigation device S may use the map information updated before a certain period as the map information before the update. Further, the map information before the update may be map information acquired in advance by a recording medium, a network, or the like.

Further, only when the determination unit determines that the update is necessary, the transmission unit that transmits the update information for the update still transmits the feature information in addition to the terminal device that has transmitted the received feature information. It may be a terminal device that has not transmitted or does not transmit feature information. This terminal device has the function of an information notification device.

As an example of the information notification device, a mobile terminal such as a smartphone may be used in addition to the navigation device S.

Further, the received feature information may include at least a determination result indicating that the terminal device is different and identification information for identifying the feature information in the map information.

In addition, each terminal device includes an image pickup means for imaging the feature, and the feature information corresponds to image information generated by imaging the feature corresponding to the feature information. You may.

In addition, each terminal device further includes a detection means for detecting a feature amount indicating the feature of the feature in the generated image information, and the received feature information is the newly acquired feature. Based on the feature amount in the image information generated by imaging the feature corresponding to the information, the feature information included in the terminal device map information and the newly acquired feature information And, may be transmitted from the terminal device only when it is determined that is different.

Further, a determination means for determining the necessity of updating the stored map information based on the received feature information, and the generated image when it is determined that the update is necessary. The terminal device further includes a transmission means for transmitting the request information to transmit the information to the terminal device, and the said request information is transmitted only when the transmitted request information is received from the terminal device. Image information may be transmitted.

Further, among the features whose stored map information includes the feature information, the feature for which the corresponding feature information is not received for a preset period in the receiving means is extracted. The means, the identification information transmitting means for transmitting the feature identification information indicating the extracted feature to the terminal device, and the feature information corresponding to the feature indicated by the transmitted feature identification information. When transmitted from the terminal device, an updating means for updating the map information using the transmitted feature information may be further provided.

1 Update information acquisition means (interface)
2 Notification means (output unit)
3 Judgment unit 8, 11 Processing unit 9, 14 Recording unit S Information notification device SS Information processing system S1, S2, Sn Navigation device (information notification device, terminal device)
SV server device W network SD, VD map data

Claims (1)

A storage unit that stores map information and
An acquisition unit that acquires collation result information indicating a collation result of the feature information included in the terminal device map information of the terminal device and the image pickup information captured by the image pickup unit of the terminal device.
When it is determined that it is necessary to update the map information based on the collation result information, a requesting unit that requests the terminal device to transmit the imaging information imaged by the imaging unit, and a requesting unit.
A server device characterized by comprising.

Images