JP4556854B2 - Navigation device and map information distribution system - Google Patents

Description

  The present invention relates to a navigation device and a map information distribution system, and more particularly to a navigation device and a map information distribution system for displaying and notifying a new road included in updated map information on a map of a display device.

  2. Description of the Related Art In recent years, a navigation device is often mounted on a vehicle that provides vehicle travel guidance so that a driver can easily arrive at a desired destination. Here, the navigation device detects the current position of the vehicle with a GPS receiver or the like, acquires map data corresponding to the current position through a recording medium such as a DVD-ROM or HDD, or a network, and displays it on a liquid crystal monitor. It is a device that can do. Then, map data including the current position of the vehicle is read from a recording medium or the like, a map image around the current position of the vehicle is drawn based on the map data and displayed on the display device, and the vehicle position mark is overlaid on the map image. You can also see at a glance which point the vehicle is currently driving by scrolling the map image as the vehicle moves, or by fixing the map image to the screen and moving the vehicle position mark I have to.

Here, new roads (new roads) are built every year in Japan. Along with this, the existing road disappears or the shape of the existing road is changed. Therefore, it is necessary to update the map data stored in the navigation device at a certain time interval. Here, the update of the map data can be done by purchasing a new DVD and replacing it with an old DVD, writing map data to the HDD at a store, or updating the contents of the HDD based on map data distributed from a map information distribution center or the like. It is done by rewriting.
Accordingly, various navigation devices and map information distribution systems have been proposed that display on a display device and notify which portion of updated map data is an updated portion.

For example, the update target portion of the map data is updated and stored using the update information including the information for specifying the update target in the map data and the update map data, and displayed. If the target map contains a part that has been updated with the update map data, at least one of the updated part and the non-updated part so that the updated part is visible separately from the non-updated part There is a navigation device configured to display a display with a different display state (see, for example, Patent Document 1).
With such a configuration, the user who sees the displayed map can intuitively understand which part is the updated new road or the like.
JP-A-2005-91225 (paragraphs (0030) to (0040), FIG. 3)

  However, in the navigation device described in Patent Document 1, it is possible to easily recognize which road is a new road, but it is easy to determine what kind of convenience is generated for the user by the new road. There is a problem that can not be confirmed.

  Accordingly, the present invention has been made to solve the above-described problems, and notifies a new road obtained by updating the map data and simultaneously notifies a place name that can be reached by the new road. Thus, a navigation device and a map information distribution system capable of notifying which area the new road is going to be effective for, and accurately determining the convenience of the user obtained by updating the map data are provided. The purpose is to provide.

In order to achieve the object, the navigation device according to claim 1 includes a map information storage means (37) for storing updated map information including new road information, and displays the new road on a map of the display device (25). In a navigation device (2) comprising a notification control means (23) for performing control so as to notify the vehicle, the vehicle position detection means (21) for detecting the vehicle position and a new road from the updated map information. and search new road retrieval means (23), a destination setting means (23) which reads out the two end points of the retrieved new road to set the two end points as the destination by the new road retrieval means, the vehicle position route search means (23, 37) for searching for a route to a previous SL their destinations from determination unit configured to determine whether includes the new roads in the route searched by said route searching means (2 And), wherein when it is determined to include new road by determination means, a place name retrieving means (23, 37) to find the end side of the place name of the new road, place names retrieved by the name lookup means And an updated road storage means (42) for storing the new road determined to be included in the route in association with the new road stored in the updated road storage means. The place name corresponding to the new road is notified.

  Further, the navigation device according to claim 2 is the navigation device (2) according to claim 1, wherein the notification control means (23) includes the new road stored in the updated road storage means (42) and the new road. It is possible to select a list display means (23) for creating a list corresponding to the name of the place corresponding to the road and displaying it on the display device (25), and any new road or place name from the list. Selection means (24), and the notification control means displays a map including the new road selected by the selection means on the display device, and guides a place name corresponding to the selected new road. The guidance information to be notified is notified.

  Further, the navigation device according to claim 3 is the navigation device (2) according to claim 1, wherein the notification control means (23) is a distance to the new road stored in the updated road storage means (42). Calculation means (23) for calculating the order, and order determination means (23) for assigning a predetermined order to the new road based on the distance to the new road calculated by the calculation means, the notification control means Displays the map including the new road stored in the updated road storage means sequentially on the display device (25) according to the predetermined order, and provides guidance information for guiding the place name corresponding to the displayed new road. It is characterized by notifying.

The navigation device according to claim 4, in the navigation device according to any one of claims 1 to 3 (2), before Symbol new road retrieval means (23) a predetermined distance range from said vehicle position It is characterized by searching for a new road existing inside.

Further, the navigation device according to claim 5 is the navigation device (2) according to any one of claims 1 to 4, wherein the place name search means (23) is an administration in which the destination on the terminal side exists. It is characterized by the division name.

A map information distribution system according to claim 6 includes a navigation device (2), and updates the map information stored in the navigation device based on update information distributed from the map information distribution center (3). In the map information distribution system (1), the navigation device (2) includes a vehicle position detection means (21) for detecting the vehicle position, a navigation side map information storage means (37) for storing map information, The map information distribution center includes the creation time information for specifying the creation time of map information stored in the navigation-side map information storage means and the own vehicle position information for specifying the own vehicle position detected by the own vehicle position detection means. Corresponding to creation time transmission means (27) for transmission, new road information for specifying a new road distributed from the map information distribution center, and a new road of the new road information Notification control means (23) for controlling to notify the new road and the name of the place corresponding to the new road based on the place name information for identifying the place name and the map information including the new road. Then, the map information distribution center (3) includes a creation time storage means (12) for storing the creation time information and the vehicle position information transmitted by the creation time transmission means, and navigation based on the creation time information. The new road search means (10, 14) for specifying the map information on the side, specifying the latest map information, and searching for the new road from the map information and the latest map information on the navigation side, and the new road search means and reading the both end points of the retrieved new road destination setting means for setting the two end points as the destination (10), wherein from the vehicle position thus specified to the vehicle position information before Symbol their destinations Route The route search means (10, 14) for searching based on the latest map information, the determination means (10) for determining whether or not the new road is included in the route searched by the route search means, and the determination If it is determined by the means that the new road is included, the place name search means (10, 14) for searching for the place name where the destination on the terminal side of the new road exists, and the place name searched by the place name search means And updated road storage means (12) for storing the new road determined to be included in the route in association with each other, new road information for specifying the new road stored in the updated road storage means, and the new road Distribution means (16) for distributing place name information for specifying a place name corresponding to a road and map information including the new road to the navigation device.

  Further, the map information distribution system according to claim 7 is the map information distribution system (1) according to claim 6, wherein the notification control means (23) is configured based on the new road information and the place name information. And a list display means (23) for creating a list in which the name corresponding to the new road and the place name corresponding to the new road are displayed and displaying them on the display device (25), and selecting an arbitrary new road or place name from the list Possible selection means (24), and the notification control means displays a map including the new road selected by the selection means on the display device, and a place name corresponding to the selected new road. It is characterized by notifying guidance information for guiding.

  The map information distribution system according to claim 8 is the map information distribution system (1) according to claim 6, wherein the notification control means (23) determines the distance to the new road based on the new road information. Calculation means (23) for calculating, and order determining means (23) for assigning a predetermined order to the new road based on the distance to the new road calculated by the calculation means, the notification control means The map including the new road is sequentially displayed on the display device according to the predetermined order, and the guide information for guiding the place name corresponding to the displayed new road is notified.

  A map information distribution system according to claim 9 is the map information distribution system (1) according to any one of claims 6 to 8, wherein the new road search means (10, 14) is the own vehicle. A new road existing within a predetermined distance range from the position is searched.

Furthermore, the map information distribution system according to claim 10 is the map information distribution system (1) according to any one of claims 6 to 9, wherein the place name search means (10, 14) is provided on the terminal side. It is characterized by the name of the administrative division where the destination exists.

In the navigation apparatus according to claim 1 having the above-described configuration, a new road is searched from the updated map information. Then, the both end points to set as the destination reads both end points of the searched new roads, for searching for a route to a destination from the vehicle position on the basis of the updated map information. In addition, it is determined whether or not a new road is included in the searched route. If a new road is included in the searched route, the name of the place where the destination on the terminal side of the new road exists and the new road determined to be included in the route are stored in association with each other. . Subsequently, the stored new road is displayed on the map of the display device, and the place name corresponding to the terminal side of the new road is notified .
As a result, the new road obtained by updating the map data is displayed on the map, and the place name that can be reached from the own vehicle position by this new road is also notified at the same time. It is possible to easily check which area the road is effective for, and to accurately determine the convenience obtained by updating the map data.

In the navigation device according to claim 2, a list in which the new road stored in the updated road storage means and the place names that can be reached by the new road are created and displayed on the display device. A map including a new road arbitrarily selected from the table is displayed on the display device, and guidance information for guiding a place name corresponding to the selected new road is notified.
Thereby, the user can select the desired new road from the new road displayed in the list with reference to the place name corresponding to the new road, and display the map including the new road on the display device. In addition, since the guide information for guiding the place name that can be reached by the displayed new road is notified, it is possible to more accurately determine the convenience of the user obtained by updating the map data.

In the navigation device according to the third aspect, a predetermined order is assigned to the new road stored in the update road storage means based on the distance to the new road (for example, the order is assigned in order of closeness). A map including the new road is sequentially displayed according to a predetermined order, and guidance information for guiding a place name corresponding to the displayed new road is notified.
As a result, the user can sequentially display the maps including the new road in the order of distance from the vehicle position (home position), and can provide guidance information for guiding the place names that can be reached by the displayed new road. Therefore, the user convenience obtained by updating the map data can be determined more accurately.

  Further, in the navigation device according to claim 4, in order to search for a new road existing within a predetermined distance range from the own vehicle position, it is possible to search for a new road that is likely to be used by the user. New roads that are likely to be used can be easily confirmed, and the convenience obtained by updating the map data can be judged more accurately.

Further, in the navigation device according to claim 5, since the destination name, that is, the administrative division (for example, the name of a municipality) where the end point on the terminal side of the new road exists is used as the place name, the user is notified of the place name to be notified. With the guidance information, it is possible to more easily confirm to which area the newly constructed road is effective and the convenience obtained by updating the map data can be determined more accurately.

In the map information distribution system according to claim 6, the map information distribution center specifies the map information on the navigation side based on the creation time information for specifying the creation time of the map information transmitted from the navigation device, and the latest information Map information is specified, and a new road is searched from the map information on the navigation side and the latest map information. Then, the map information distribution center, set the two end points as the destination reads both end points of the searched new roads, the latest map information for a route to a destination from the vehicle position transmitted from the navigation device Search based on. Then, if a new road is included in the searched route, the map information distribution center includes the name of the place where the destination on the terminal side of the new road exists and the new road determined to be included in the route. And storing the new road information for specifying the stored new road, the place name information for specifying the place name corresponding to the new road, and the map information including the new road to the navigation device. To deliver. On the other hand, the navigation device includes a new road information for specifying a new road distributed from the map information distribution center, a place name information for specifying a place name corresponding to the new road in the new road information, and a map including the new road Based on the information, the new road and the place name corresponding to the new road are notified.
As a result, the user is notified of the new road obtained by updating the map data, and the name of the place that can be reached from the vehicle position by this new road is also notified at the same time, so that the new road obtained by the update can be obtained. You can easily check which area you are heading to, and know exactly the convenience that you get by updating the map data, and decide exactly whether or not to update the map information. it can. Moreover, the search to the vehicle position the route to both end points of the map information distribution center is new roads (for example, a home.) With identifying the available new road from arriving from the vehicle position by this new road Since the place names that can be searched are searched, the processing load of the navigation device can be reduced.

In the map information distribution system according to claim 7, the navigation device corresponds to the new road and the place name that can be reached by the new road based on the new road information and the place name information received from the map information distribution center. The created list is generated and displayed on the display device, and a map including the newly-installed road arbitrarily selected from the list is displayed on the display device, and the place name corresponding to the selected new road is guided. Broadcast information.
As a result, the user can select a desired new road by referring to the new road displayed in the list and the place name that can be reached by the new road, and display a map including the new road on the display device. In addition, since the guide information for guiding the place name that can be reached by the displayed new road is notified, the convenience of the user obtained by updating the map data can be known more accurately, and the map It is possible to accurately determine whether or not to update the information.

In the map information distribution system according to claim 8, the navigation device assigns a predetermined order to the new road included in the new road information received from the map information distribution center based on the distance to the new road. (For example, the order is assigned in the closest order.) A map including the new road is sequentially displayed according to the predetermined order, and the place name corresponding to the displayed new road is displayed based on the place name information received from the map information distribution center. The guide information for guiding is notified.
As a result, the user can sequentially display the maps including the new road in the order of distance from the vehicle position (home position), and can provide guidance information for guiding the place names that can be reached by the displayed new road. Therefore, the convenience of the user obtained by updating the map data can be known more accurately, and it can be accurately determined whether or not to update the map information.

  In the map information distribution system according to claim 9, the map information distribution center searches for a new road that is likely to be used by the user in order to search for a new road existing within a predetermined distance range from the vehicle position. Thus, the user can easily confirm a new road that is likely to be used among the new roads in the updated map information, and can more accurately determine the convenience obtained by updating the map data.

Further, in the map information distribution system according to claim 10, since the destination, that is, the administrative division (for example, the name of a municipality) where the terminal point on the terminal side of the new road exists, the user uses the navigation device. It is possible to more easily confirm to which area the newly constructed road is effective for guidance based on the notified place name information, and it is possible to more accurately determine the convenience obtained by updating the map data.

  Hereinafter, a navigation device and a map information distribution system according to the present invention will be described in detail with reference to the drawings based on a first embodiment and a second embodiment.

  First, a schematic configuration of the map information distribution system 1 according to the first embodiment will be described with reference to FIG. FIG. 1 is a block diagram illustrating a map information distribution system 1 according to the first embodiment.

  As shown in FIG. 1, the map information distribution system 1 according to the first embodiment includes a navigation device 2, a map information distribution center 3 that distributes update information for updating map information to the navigation device 2, and a network 4. It basically consists of The navigation device 2 and the map information distribution center 3 are configured to be able to transmit and receive various types of information via the network 4. The configuration of the navigation device 2 will be described in detail later with reference to FIG.

  As shown in FIG. 1, the map information distribution center 3 includes a server 10, a center side map information DB 14 as an information recording unit connected to the server 10, a navigation update history information DB 15, and a center side communication device 16. . In addition, the server 10 is based on requests from the navigation device 2 and the arithmetic unit that controls the entire server 10 and the CPU 11 as the control unit, the RAM 12 that is used as a working memory when the CPU 11 performs various arithmetic processes. Of the map information stored in the navigation device 2, the update information for updating the map information of the predetermined area to the new version of the map information is extracted from the center side map information DB 14 and distributed to the navigation device 2. An internal storage device such as a ROM 13 in which various control programs for performing information update processing and the like are recorded is provided. An MPU or the like can be used instead of the CPU 11.

  In the center-side map information DB 14, update map information 17, which is basic map information for updating the map information created in the map information distribution center 3 and stored in the navigation device 2, is classified for each version. Has been remembered. Furthermore, update information for updating part or all of the map information stored in the current navigation device 2 to the update map information 17 is also stored. Here, the version is creation time information for specifying the time when the map information is created, and the time when the map information is created can be specified by referring to the version.

  The update map information 17 stored in the center-side map information DB 14 stores various information necessary for route guidance and map display by the navigation device 2, for example, for displaying a map. Map display data, intersection data relating to each intersection, node data relating to node points, link data relating to roads (links) as a kind of facility, search data for searching for a route, POI (Point of points) such as stores that are a kind of facility Store data related to (Interest), search data for searching for points, and the like.

  Here, in particular, the map display data is divided into 4 (length 1/2), 16 (1/4), and 64 (1/8) based on a secondary mesh partitioned by 10 km × 10 km. Each unit is configured so that the data amount of each unit is approximately the same level. The smallest 64 division size unit is about 1.25 km square.

  Node data includes actual road branch points (including intersections, T-junctions, etc.), node point coordinates (positions) set for each road according to the radius of curvature, etc., nodes Node attribute indicating whether or not is a node corresponding to an intersection, connection link number list that is a list of link numbers of links connected to the node, adjacent node that is a list of node numbers of nodes adjacent to the node via the link Data relating to the number list, the height (altitude) of each node point, and the like are recorded.

  Link data includes the width of the road to which the link belongs, the gradient, the cant, the bank, the road surface condition, the number of lanes on the road, the number of lanes decreasing, and the width of the link data. The data indicating the radius, crossing, T-junction, corner entrance and exit, etc. with respect to the corner, data representing the downhill road, uphill road, etc. In addition to roads such as national roads, prefectural roads, narrow streets, etc., data representing toll roads such as national highways, urban highways, general toll roads, and toll bridges are recorded. Furthermore, regarding toll roads, data relating to entrance roads (rampways), toll gates (interchanges) and the like of toll roads are recorded.

  In addition, as search data, data used for searching and displaying a route to a set destination is recorded, and costs for passing through a node (hereinafter referred to as node cost) and roads are configured. Cost data used for calculating a search cost including a cost of a link to be performed (hereinafter referred to as a link cost), route display data for displaying a route selected by the route search on a map of the liquid crystal display 25, and the like. Has been.

  Further, as store data, data on POIs such as hotels, hospitals, gas stations, parking lots, and tourist facilities in each region are recorded together with IDs that identify the POIs. The center-side map information DB 14 also records voice output data for outputting predetermined information by the speaker 26 of the navigation device 2.

  Then, the map information distribution center 3 uses the latest version of the update map information 17 stored in the center-side map information DB 14 at the timing when the request from the navigation device 2 is received, and the navigation device The map information stored in 2 is updated. Specifically, in the map information distribution system 1 according to the first embodiment, when there is a distribution request for the update map information 17 from the navigation device 2, the map information distribution system 1 is updated to the latest version of the update map information 17. Updating is performed by distributing update information to the navigation device 2. Here, as the update information transmitted to the navigation device 2, all information including new road information for specifying the new road of the newest version map information 17 for update may be transmitted. Necessary minimum information for updating from the map information stored in the current navigation device to the newest update map information 17 of the latest version (only information on the updated portion including the new road information for identifying the new road) It may be sent.

  On the other hand, in the navigation update history information DB 15, information related to the update history in which the map information stored in the navigation device 2 has been updated so far is stored together with the navigation identification ID that identifies the navigation device 2. As the update history, which version of map information is used for each link data or node data that specifically constitutes map information is stored, and a new one is updated every time the map information of the navigation device 2 is updated. Rewritten to update history.

  The map information distribution center 3 may be operated by any one of an individual, a company, a group, a local government, a government-related organization, and the like, and may be operated by a VICS (registered trademark: Vehicle Information and Communication System) center. Good.

  The network 4 includes, for example, a LAN (Local Area Network), a WAN (Wide Area Network), an intranet, a mobile phone line network, a telephone line network, a public communication line network, a dedicated communication line network, a communication line network such as the Internet, etc. Can be used. A communication system using CS broadcasting, BS broadcasting, terrestrial digital television broadcasting, FM multiplex broadcasting, or the like by a broadcasting satellite can also be used. Furthermore, a communication system such as a non-stop automatic fee payment system (ETC) or a narrow area communication system (DSRC) used in an intelligent road traffic system (ITS) can also be used.

  Next, a schematic configuration of the navigation device 2 configuring the map information distribution system 1 according to the first embodiment will be described with reference to FIG. FIG. 2 is a block diagram illustrating the navigation device 2 according to the first embodiment.

  As shown in FIG. 2, the navigation device 2 according to the first embodiment is based on a current location detection processing unit 21 that detects the current position of the host vehicle, a data recording unit 22 that records various data, and input information. A navigation control unit 23 that performs various arithmetic processes, an operation unit 24 that receives operations from an operator, a liquid crystal display 25 that displays information such as a map to the operator, route guidance, and registration points described later. And a communication device 27 that communicates with an information center such as a traffic information center or the map information distribution center 3. The navigation control unit 23 is connected to a vehicle speed sensor 28 that detects the traveling speed of the host vehicle.

  The components constituting the navigation device 2 will be described below. The current location detection processing unit 21 includes a GPS 31, a geomagnetic sensor 32, a distance sensor 33, a steering sensor 34, a gyro sensor 35 as an azimuth detection unit, and an altimeter (not shown). And the like, and it is possible to detect the current position, direction, distance to a target (for example, an intersection), and the like.

  Specifically, the GPS 31 detects the current location and current time of the vehicle on the earth by receiving radio waves generated by artificial satellites, and the geomagnetic sensor 32 measures the direction of the vehicle by measuring the geomagnetism. The distance sensor 33 detects a distance between predetermined positions on the road. Here, as the distance sensor 33, for example, the rotational speed of a wheel (not shown) of the vehicle is measured, a sensor that detects the distance based on the measured rotational speed, the acceleration is measured, and the measured acceleration is 2 A sensor that integrates the times and detects the distance can be used.

  The steering sensor 34 detects the rudder angle of the host vehicle. Here, as the steering sensor 34, for example, an optical rotation sensor attached to a rotating portion of a steering wheel (not shown), a rotation resistance sensor, an angle sensor attached to a wheel, or the like is used.

  And the gyro sensor 35 detects the turning angle of the own vehicle. Here, as the gyro sensor 35, for example, a gas rate gyro, a vibration gyro, or the like is used. Further, by integrating the turning angle detected by the gyro sensor 35, the vehicle direction can be detected.

  The data recording unit 22 reads an external storage device and a hard disk (not shown) as a storage medium, a navigation side map information DB 37 stored in the hard disk, a predetermined program, and the like, and writes predetermined data in the hard disk. And a recording head (not shown) which is a driver for this purpose. In the first embodiment, a hard disk is used as the external storage device and the storage medium of the data recording unit 22, but a magnetic disk such as a flexible disk can be used as the external storage device in addition to the hard disk. Also, a memory card, magnetic tape, magnetic drum, CD, MD, DVD, optical disk, MO, IC card, optical card, etc. can be used as an external storage device.

Here, the navigation-side map information DB 37 stores navigation map information 38 that is used for travel guidance and route search of the navigation device 2 and is to be updated by the map information distribution center 3. Here, the navigation map information 38 is composed of various information necessary for route guidance and map display in the same way as the update map information 17. For example, new road information and a map for specifying each new road are displayed. Map display data for display, intersection data for each intersection, node data for node points, link data for roads (links) as a type of facility, search data for searching for routes, stores as a type of facility, etc. It consists of store data related to POI, search data for searching points, and the like. Since details of each data have already been described, details thereof are omitted here.
The contents of the navigation side map information DB 37 are updated by downloading update information distributed from the map information distribution center 3 via the communication device 27.

  As shown in FIG. 2, the navigation control unit 23 constituting the navigation device 2 is a computing device that performs overall control of the navigation device 2, a CPU 41 as a control device, and working when the CPU 41 performs various types of computation processing. In addition to being used as a memory, the RAM 42 that stores route data when a route is searched, a control program, an update content guidance button (to be described later) or a navigation side map information DB 37 is updated. After that, an internal storage device such as a ROM 43 storing an update content guidance processing program (see FIG. 3) to be executed when the engine is first started and a flash memory 44 storing a program read from the ROM 43 is provided. As the RAM 42, ROM 43, flash memory 44, etc., a semiconductor memory, a magnetic core or the like is used. As the arithmetic device and the control device, an MPU or the like can be used instead of the CPU 41.

  In the first embodiment, various programs are stored in the ROM 43, and various data are stored in the data recording unit 22. However, the programs, data, and the like are stored in the same external storage device, memory card, and the like. It is also possible to read out a program, data, etc. from the flash memory 44 and so on. Further, the program, data, etc. can be updated by exchanging a memory card or the like.

  Furthermore, the navigation control unit 23 is electrically connected to peripheral devices (actuators) of the operation unit 24, the liquid crystal display 25, the speaker 26, and the communication device 27.

  When the operation unit 24 corrects the current location at the start of travel, inputs a departure point as a guidance start point and a destination as a guidance end point, or searches for information about facilities, the navigation unit 24 further performs navigation as described later. It is operated when confirming the update contents of the map information DB 37, and is composed of a plurality of operation switches (not shown) such as various keys and an update contents guide button for instructing the update contents of the navigation side map information DB 37. The Then, the navigation control unit 23 performs control to execute various corresponding operations based on switch signals output by pressing the switches. As the operation unit 24, a keyboard, a mouse, a barcode reader, a remote control device for remote operation, a joystick, a light pen, a stylus pen, or the like can be used. Furthermore, it can also be configured by a touch panel provided on the front surface of the liquid crystal display 25.

  Further, on the liquid crystal display 25, as will be described later, updated road information for selecting whether to display a map including any new road from a list of new roads and place names that can be reached by the new road In addition to the selection screen, operation guidance, operation menu, key guidance, guidance route from the current location to the destination, guidance information along the guidance route, traffic information, news, weather forecast, time, email, TV program, etc. are displayed Is done. Instead of the liquid crystal display 25, it is also possible to use a CRT display, a plasma display, or the like, or a hologram device that projects a hologram on the windshield of a vehicle.

  In addition, the speaker 26 provides voice guidance that guides driving along the guidance route, such as the name of a municipality or a local name that can be reached by the selected new road based on an instruction from the navigation control unit 23. Output. Here, as voice guidance to be guided, for example, “New road to Mino area has been updated”, “200m ahead, right at XX intersection” and “National road XX road ahead” There is traffic. " Note that as the sound output from the speaker 26, in addition to the synthesized sound, various sound effects and various guidance information recorded in advance on a tape, a memory or the like can be output.

  The communication device 27 is a communication unit that communicates with the map information distribution center 3, and transmits / receives updated map information and the like of the newest version with the map information distribution center 3. Further, in addition to the map information distribution center 3, for example, traffic information composed of information such as traffic jam information, regulation information, parking lot information, traffic accident information, and service area congestion status transmitted from the VICS center or the like is received. It is also possible.

  Subsequently, in the map information distribution system 1 having the above configuration, when the navigation map information 38 of the navigation side map information DB 37 of the navigation device 2 is updated, the CPU 41 of the navigation device 2 updates the navigation map information 38. The update content guidance processing program to be executed will be described with reference to FIGS. FIG. 3 is a flowchart of an update content guidance processing program for notifying a new road or the like of updated map data stored in the navigation-side map information DB 37 of the navigation device 2 according to the first embodiment. FIG. 4 is a sub-flowchart showing the sub-process of the notification process 1. 3 and 4 are stored in the RAM 42 and the ROM 43 provided in the navigation device 2 and executed by the CPU 41.

As shown in FIG. 3, first, in step (hereinafter abbreviated as S) 1 of the update content guidance processing program, the CPU 41 performs a determination process for determining whether or not the update content guidance button of the operation unit 24 has been pressed. Execute. When the update content guidance button is pressed (S1: YES), the CPU 41 proceeds to the process of S3.
On the other hand, when the update content guidance button is not pressed (S1: NO), the CPU 41 proceeds to the process of S2. In S2, after the navigation map information 38 of the navigation side map information DB 37 is updated, the CPU 41 determines whether or not the ignition switch is first turned from OFF to ON, that is, whether or not the engine of the vehicle is started. The determination is made based on a detection signal transmitted from (not shown).

Then, after the navigation-side map information DB 37 is updated, when it is determined that the ignition switch is not turned on, that is, stopped (S2: NO), the processing is terminated.
On the other hand, if it is determined that the ignition switch is first turned on after the navigation side map information DB 37 is updated (S2: YES), the CPU 41 proceeds to the process of S3.

Subsequently, in S3, the CPU 41 compares each node data and link data of the old map data before update and the updated map data after update, and extracts each node data and link data added by the updated map data. After each new road is specified and stored in the navigation side map information DB 37 as new road information, the process proceeds to S4.
If new road information for specifying a new road is acquired when the navigation side map information DB 37 is updated, the process of S3 is not executed and the process proceeds to S4.

Thereafter, in S4, the CPU 41 detects the current position of the own vehicle (hereinafter referred to as “own vehicle position”) based on the detection result of the current position detection processing unit 21. And CPU41 reads the position of the node point (endpoint) of the both ends of each new road from the new road information of navigation side map information DB37, and the distance to the node point of the far side from the own vehicle position is less than predetermined distance (for example, A new road existing within a range of about 200 km from the own vehicle position) is specified and stored in the RAM 42 in order as a new road for route search.
It should be noted that the position of the nearest node point from the own vehicle position among the node points constituting each new road is read from the new road information in the navigation side map information DB 37, and the distance to this node point is within a predetermined distance (for example, A new road existing within a range of about 100 km from the own vehicle position) may be specified and stored in the RAM 42 in order as a new road for route search. Also, each new road is read from the new road information in the navigation-side map information DB 37, and the prefecture where the own vehicle position (for example, home) exists or the region where the own vehicle position exists (for example, the Chubu region, etc.) Each new road in (1) may be stored in the RAM 42 in turn as a route search new road.

Subsequently, in S5, the CPU 41 reads out each end point of each route search new road from the new road information in the navigation side map information DB 37, and sets each end point as a destination of the search route.
In S6, the CPU 41 detects the current position of the vehicle (for example, home) based on the detection result of the current position detection processing unit 21, and searches the navigation side map information DB 37 for a route search to each destination. This is performed based on various information such as stored node data.
In addition, since the route search process and the guidance process related to the general navigation function when the destination is set are already known, the details are omitted here.

In S <b> 7, the CPU 41 executes determination processing for determining whether or not the route searched to the destination includes new roads that are new roads for route search stored in the RAM 42.
If the route searched to this destination includes new roads that are new roads for route search stored in the RAM 42 (S7: YES), the CPU 41 proceeds to the process of S8.

In S8, the CPU 41 searches the name of the municipality where the end point of the new road set as the destination of the new road included in this route exists based on the navigation map information 38, and arrives by this new road. It is stored in the RAM 42 as a “place name”. For example, when the interchange that is the end point set as the destination of the new high-speed automobile national road is Okazaki Interchange, “Okazaki City” is stored in the RAM 42 as “place name” that can be reached by the new road.
In addition, when the end point set as the destination of the new road exists in the same city or town as the own vehicle position, the CPU 41 arrives at the town name or village name, which is one step smaller administrative division, by the new road. Is stored in the RAM 42 as a “place name”. Also, instead of the name of the municipality where the end point set as the destination of the new road exists, the name of the administrative facility closest to the end point set as the destination of the new road (prefectural office, municipal office, ward office, etc.) May be stored in the RAM 42 as a “place name” that can be reached by a new road. In addition, if the end point set as the destination of the new road exceeds the prefecture where the vehicle is located, the name of the region where the end point set as the destination exists (for example, “Mino” May be stored in the RAM 42 as a “place name” that can be reached by a new road.

Thereafter, in S <b> 9, the CPU 41 reads out each “place name” from the RAM 42, and stores in the RAM 42 each new road where the end point set as the destination is set in each “place name” and each “place name”. Thereafter, the process proceeds to S10.
On the other hand, when the route searched to the destination in S7 does not include a new road that is a new road for each route search stored in the RAM 42 (S7: NO), the CPU 41 proceeds to the process of S10.

Next, in S <b> 10, the CPU 41 stores in the RAM 42 whether or not the processing of S <b> 5 to S <b> 9 has been executed for all the route search new roads stored in the RAM 42, that is, the next route search new road is stored in the RAM 42. A determination process is performed to determine whether or not the
When the processing of S5 to S9 is not executed for all the new route searching roads stored in the RAM 42 (S10: NO), the CPU 41 reads the new route searching new road in the next order from the RAM 42. Then, the process proceeds to S5 again, and each end point of the read route search new road is read from the new road information in the navigation side map information DB 37, and each end point is set as the destination of the search route. Execute the process.
On the other hand, when the processing of S5 to S9 is executed for all the new roads for route search stored in the RAM 42 (S10: YES), in S11, the CPU 41 performs sub-processing of “notification processing 1” described later (FIG. 4), the process is terminated.

Next, the sub-process of “notification process 1” in S11 will be described with reference to FIGS.
As shown in FIG. 4, in S21, the CPU 41 reads out each new road information stored in the RAM 42 in S9 and each "place name" corresponding to each new road information, creates a list, and creates a list 25. Are displayed as updated road information of the updated map data stored in the navigation side map information DB 37.
For example, as shown in FIG. 5, the CPU 41 displays “update road information” at the upper edge of the display screen of the liquid crystal display 25, and displays a list 51 below it. For example, “Nagoya Seto Road” as the first new road in the list 51 and “Place Name” where the end point (destination) of this new road exists, that is, “Place Name” that can be reached by this new road “Nagakute” is displayed. In addition, “Tokai Ring Expressway” as the second new road in the list 51 and “place name” where the end point (destination) of this new road exists, that is, “place name” that can be reached by this new road. “Mino” is displayed.

In S22, the CPU 41 has selected any of the updated road information displayed on the list 51 within the predetermined time (for example, about 30 seconds to 1 minute) via the operation unit 24. A determination process for determining whether or not is executed.
If none of the updated road information displayed on the list 51 is selected (S22: NO), the CPU 41 deletes the list 51 and displays the map where the vehicle is located, and then End the sub-process and return to the main flowchart.

On the other hand, when any of the updated road information displayed on the list 51 is selected via the operation unit 24 such as a touch panel or a cursor key provided on the front surface of the liquid crystal display 25 (S22: YES). The CPU 41 proceeds to the process of S23.
In S23, the CPU 41 displays a map 53 (see FIG. 6) including the new road of the selected updated road information on the liquid crystal display 25, and at the upper edge of the display screen of the liquid crystal display 25, the new road is displayed. The guide information 54 (see FIG. 6) for guiding the “place name” that can be reached is displayed. Further, the CPU 41 displays the map on the map 53 while changing the display state so that the new road can be distinguished from other roads.

For example, as shown in FIGS. 5 and 6, when “Tokai Ring Expressway Mino” is selected via the operation unit 24 (S22: YES), the CPU 41 includes this “Tokai Ring Expressway”. A map 53 is displayed on the liquid crystal display 25. Further, the CPU 41 displays a new road 55 that is a “Tokai Ring Expressway” on the map 53 by changing the color with a thick line. In addition, the CPU 41 displays guidance information 54 that “a new road to the Mino area has been updated” that guides the “place name” that can be reached by the new road 55 on the upper edge of the display screen. .
The guidance information 54 may be guided to the user through the speaker 26 by voice.

As described above in detail, in the navigation device 2 according to the first embodiment, after the navigation-side map information DB 37 is updated, when the update content guidance button of the operation unit 24 is pressed, or the vehicle engine is first activated. When started, the CPU 41 establishes a new installation in which the distance from the own vehicle position to a node point (end point) farther away from the new road is within a predetermined distance (for example, within about 200 km from the own vehicle position). A road is specified, and a route is searched using each end point of each specified new road as a destination (S1 to S6). If the specified new road is included in the route searched to each destination, the CPU 41 searches for the “place name” where the end point of the new road exists, and the new road and the “place name”. Are stored in the RAM 42 (S7 to S10). Subsequently, the CPU 41 creates a list 51 of “update road information” in which each new road is associated with “place name” and displays it on the liquid crystal display 25 (S21). Thereafter, a map 53 including the selected new road 55 is displayed on the liquid crystal display 25 by selecting any of the new roads displayed in the list 51 via the operation unit 24. Guidance information 54 for guiding the “place name” that can be reached by the new road 55 is displayed (S22 to S23).
Thereby, the user can reach within a predetermined distance from the own vehicle position by each new road added by updating the navigation map information 38 from the updated road information list 51 displayed on the liquid crystal display 25. The map 53 including the new road 55 can be selected and displayed on the liquid crystal display 25 with reference to the above, and the displayed new road 55 is within a predetermined distance from the vehicle position. Since the guide information 54 that guides the “place name” that can be reached is notified, the convenience of the user obtained by updating the navigation map information 38 can be determined more accurately.

  Next, in the map information distribution system according to the second embodiment, before the navigation map information 38 of the navigation side map information DB 37 of the navigation device 2 is updated, the CPU 41 of the navigation device 2 and the CPU 11 of the map information distribution center 3 An update content guidance processing program that is executed in order to notify the user in advance of information related to a new road added by updating the navigation map information 38 will be described with reference to FIG. In the following description, the same reference numerals as those of the map information distribution system 1 according to the first embodiment shown in FIGS. 1 to 6 denote the same or corresponding parts as those of the map information distribution system 1 according to the first embodiment. Is.

The schematic configuration of the map information distribution system according to the second embodiment is substantially the same as that of the map information distribution system 1 according to the first embodiment. Various control processes are also substantially the same as the map information distribution system 1 according to the first embodiment.
However, in the map information distribution system 1 according to the first embodiment, the navigation apparatus 2 specifies a new road by searching for a route using each end point of each new road existing within a predetermined distance from the vehicle position as a destination. On the other hand, in the map information distribution system according to the second embodiment, the map information distribution center 3 searches for the “location name” where the end point on the terminal side of the specified new road exists. And the latest map information 17 of the update map information 17 from the version of the navigation side map information 38, and based on this latest map information, each end point of each new road existing within a predetermined distance from the vehicle position is determined as the destination. The route is searched to identify the new road, the “place name” where the end point of the identified new road exists is searched, and the map information including the new road and the “place name” etc. are navigated. It is different from the map information distribution system 1 according to the first embodiment in that delivery to.

First, an update content guidance processing program executed by the CPU 41 of the navigation device 2 will be described with reference to FIG.
As shown in FIG. 7, in S <b> 101, the CPU 41 executes a determination process for determining whether or not the update content guidance button of the operation unit 24 has been pressed.
If the update content guidance button is not pressed (S101: NO), the CPU 41 ends the process.
On the other hand, when the update content guidance button is pressed (S101: YES), the CPU 41 proceeds to the process of S102. In S <b> 102, the CPU 41 detects the current position of the own vehicle (for example, home) based on the detection result of the current position detection processing unit 21, and determines the current position of the own vehicle with respect to the map information distribution center 3. Send. At the same time, the CPU 41 transmits version information representing the version of the current navigation map information 38 stored in the navigation side map information DB 37 to the map information distribution center 3.

Thereafter, in S <b> 103, the CPU 41 receives from the map information distribution center 3 the new road list data that associates each new road with the “place name” that can be reached by each new road, and stores it in the RAM 42. Further, the CPU 41 receives a map including each new road from the map information distribution center 3 and stores it in the RAM 42. At the same time, the guide information for guiding the “place name” that can be reached by each new road is received and stored in the RAM 42 in association with each new road.
Subsequently, in S104, the CPU 41 ends the process after executing the sub process of “notification process 1” in S11.
Specifically, the CPU 41 creates a list 51 based on the new road list data stored in the RAM 42 and displays it on the liquid crystal display 25 (S21). If any of the updated road information displayed on the list 51 is selected via the operation unit 24 (S22: YES), a map including the newly established road of the selected updated road information 53 is read from the RAM 42 and displayed on the liquid crystal display 25, and guidance information 54 for guiding the “place name” that can be reached by this new road is read from the RAM 42 and displayed on the upper edge of the display screen of the liquid crystal display 25. (S23). Further, the CPU 41 displays the map on the map 53 while changing the display state so that the new road can be distinguished from other roads. The guidance information 54 may be guided to the user through the speaker 26 by voice.

  When the update content guide button is pressed in S101 (S101: YES), the CPU 41 executes the processing from S102 onward, but the update button of the operation unit 24 that instructs to update the navigation map information 38 is displayed. When the button is pressed, the processing after S102 may be executed.

Next, an update content guidance processing program executed by the CPU 11 of the map information distribution center 3 will be described with reference to FIG.
First, in S111, the CPU 11 stores the current position data and the version information of the navigation map information 38 transmitted from the navigation device 2 in S102 in the RAM 12. Then, the CPU 11 compares the version map information corresponding to this version information with the latest map information, extracts each node data and link data added by the latest map information, identifies each new road, After the information is stored in the center-side map information DB 14, the process proceeds to S112.
It should be noted that the update information for updating to the update map information 17 stored in the center side map information DB 14 is a new construction for specifying a new road for updating from the version map information corresponding to this version information to the latest map information. If road information is included, in the process of S111, the CPU 11 stores the current position data and the version information of the navigation map information 38 transmitted from the navigation device 2 in the RAM 12, and then performs the process of S112. Transition.

In S112, the CPU 11 reads the positions of the node points at both ends of each new road from the new road information stored in the center-side map information DB 14, and the distance to the node point far from the own vehicle position is within a predetermined distance. A new road existing within the range of (for example, within about 200 km from the vehicle position) is specified and stored in the RAM 12 in order as a new road for route search.
In addition, the position of the node point closest to the own vehicle position of each new road is read from the new road information in the center side map information DB 14, and the distance to this node point is within a predetermined distance (for example, within about 100 km from the own vehicle position). The new road existing within the range of (5) may be specified and stored in the RAM 12 in order as a new road for route search. In addition, each new road is read from the new road information in the center-side map information DB 14, and the prefecture where the own vehicle position (for example, home) exists or the region where the own vehicle position exists (for example, the Chubu region, etc.) Each new road in (1) may be stored in the RAM 12 in order as a new road for route search.

Subsequently, in S113, the CPU 11 reads out the end points at both ends of each route search new road from the new road information in the center side map information DB 14, and sets each end point as the destination of the search route.
In S <b> 114, the CPU 11 performs a route search from the vehicle position stored in the RAM 12 to each destination based on various information such as node data stored in the latest map information stored in the update map information 17. .
Note that route search processing and guidance processing related to a general navigation function when a destination is set are already known (see, for example, Japanese Patent Laid-Open No. 10-281785), and details thereof are omitted here. .

In S115, the CPU 11 executes a determination process for determining whether or not the route searched to the destination includes new roads that are new roads for route search stored in the RAM 12.
When the route searched to the destination includes a new road that is a new road for route search stored in the RAM 12 (S115: YES), the CPU 11 proceeds to S116.

In S116, the CPU 11 retrieves the name of the municipality where the destination (endpoint) on the terminal side of the new road included in this route exists based on the latest map information stored in the center side map information DB 14, and this It is stored in the RAM 12 as a “place name” that can be reached by a new road. For example, when the interchange which is the terminal point on the terminal side of the new high-speed automobile national road is the Okazaki interchange, it is stored in the RAM 42 as the “place name” that can be reached by the new road.
In addition, CPU11 can reach the town name and village name which are administrative divisions one step smaller by the new road when the end point on the terminal side of the new road is located in the same city or town as the own vehicle position. The place name is stored in the RAM 12. In addition, instead of the name of the municipality where the end point of the new road exists, the name of the administrative facility closest to the end point of the new road (such as a prefectural office, municipal office, ward office, etc.) is searched and newly established. You may memorize | store in RAM12 as a "place name" which can be reached | attained by a road. In addition, when the end point on the terminal side of the new road exceeds the prefecture where the own vehicle position exists, the local name (for example, Mino region, etc.) where the terminal point exists is searched. You may memorize | store in RAM12 as a "place name" which can be reached | attained by a new road.

Thereafter, in S117, the CPU 11 reads each “place name” from the RAM 12, stores each “place name” in the RAM 12 in association with each “place name” that includes an end point on the terminal side, and then stores it in the S12. Move on to processing.
On the other hand, when the route searched to the destination in S115 does not include the new roads that are the new roads for route search stored in the RAM 12 (S115: NO), the CPU 11 proceeds to the process of S1118.

Next, in S118, the CPU 11 stores in the RAM 12 whether or not the processes of S113 to S117 have been executed for all the route search new roads stored in the RAM 12, that is, the next route search new road is stored in the RAM 12. A determination process is performed to determine whether or not the
If the processing of S113 to S117 has not been executed for all the route search new roads stored in the RAM 12 (S118: NO), the CPU 11 reads the next route search new road from the RAM 12 in the next order. Then, the process proceeds to S113 again to read out each end point of the read route search new road from the new road information in the center side map information DB 14, and set each end point as the destination of the search route. Execute the process.

  On the other hand, when the processes of S113 to S117 are executed for all the new roads for route search stored in the RAM 12 (S118: YES), in S119, the CPU 11 sets the new road information of the new road stored in the RAM 12. The list data of the new roads corresponding to the “place names” that can be reached by this new road are created and transmitted to the navigation device 2. The new road information of the new road stored in the RAM 12 and the “place name” that can be reached by this new road may be sequentially transmitted to the navigation device 2. Further, the CPU 11 sequentially transmits map data including each new road stored in the RAM 12 (for example, the update map information 17 in the secondary mesh including the new road) to the navigation device 2. Further, the CPU 11 creates guide information for guiding each “place name” stored in the RAM 12 and transmits it to the navigation device 2, and then ends the process.

As described above in detail, in the map information distribution system according to the second embodiment, before the user upgrades the navigation map information 38 of the navigation device 2, the update content guidance button of the operation unit 24 of the navigation device 2 is pressed. When pressed, the CPU 41 transmits the vehicle position and version information of the navigation map information 38 to the map information distribution center 3 (S101 to S102).
Then, the CPU 11 of the map information distribution center 3 compares the map information of the version of the navigation map information 38 with the latest map information, and among the new roads added by the latest map information, at both ends of the new roads. A new road existing within a predetermined distance (for example, within about 200 km from the own vehicle position) to a node point far from the own vehicle position among the respective node points is specified (S111 to S112). ). Further, the CPU 11 performs a route search using the end points at both ends of each identified new road as a destination, and when the searched route includes a new road, the new road information and the new road of each new road are included. Can be reached by list data of new roads that correspond to “place names” such as the names of cities, towns and villages where destinations (endpoints) on the terminal side of the map exist, map data including each new road, and each new road Guide information for guiding the “place name” is created and transmitted to the navigation device 2 (S113 to S119).
Thereafter, the CPU 41 of the navigation device 2 associates each new road with the “place name” corresponding to each new road based on the received new road information and the “place name” list data. A list 51 is created and displayed on the liquid crystal display 25, and a map including a new road arbitrarily selected from the list 51 is read from the RAM 42 and displayed on the liquid crystal display 25. At the same time, the CPU 41 reads out from the RAM 42 the guidance information 54 for guiding the “place name” that can be reached by the selected new road, and displays it on the liquid crystal display 25 (S103 to S104).

  As a result, the user can select a “place name within a predetermined distance from the own vehicle position that can be reached by each new road added by updating the navigation map information 38 from the updated road information list 51 displayed on the liquid crystal display 25. ”, The user can select a desired new road and display a map including the new road on the liquid crystal display 25, and from the vehicle position that can be reached by each displayed new road. Since the guide information 54 that guides the “place name” within a predetermined distance is notified, the user's convenience obtained by updating the map data can be known more accurately, and whether or not the map information is updated can be accurately determined. Judgment can be made. Further, the map information distribution center 3 searches the route to each end point of each end of each new road, specifies a new road that can be used within a predetermined distance range from the own vehicle position, and can be reached by this new road. Since the search for possible “place names” is performed, the processing load on the navigation device 2 can be reduced.

  In addition, this invention is not limited to the said Example 1 and Example 2, Of course, various improvement and deformation | transformation are possible within the range which does not deviate from the summary of this invention. For example, the following may be used.

For example, the CPU 41 of the navigation device 2 may execute a “notification process 2” sub-process shown in FIG. 8 instead of the “notification process 1” sub-process of S11 and S104.
Here, the sub-process of “notification process 2” will be described with reference to FIGS. 8 and 9.
As shown in FIG. 8, in S <b> 201, the CPU 41 detects the current position of the vehicle (for example, home) based on the detection result of the current location detection processing unit 21. Then, the CPU 41 sequentially reads each new road information stored in the RAM 42 and calculates the distance by calculating the shortest distance from the current position of the vehicle (for example, home) to each new road. Store in the RAM 42.
In S202, the CPU 41 sequentially maps maps including the new roads for a predetermined time (for example, approximately 3 seconds to 30 seconds) in order from the nearest new road among the shortest distances to the new roads. ) The information is sequentially displayed on the liquid crystal display 25, and the guide information for guiding the “place name” that can be reached by each new road is displayed on the upper edge of the display screen. Return.

For example, as shown in FIG. 9, the new road information and “Nagoya Seto Road Nagakute” and “Tokai Ring Expressway Mino” are stored in the RAM 42 as “place names” that can be reached by each new road. When the distance from the current position to “Tokai Ring Expressway” is closer than the distance to “Nagoya Seto Road”, the CPU 41 first includes a map 53 including “Tokai Ring Expressway” on the liquid crystal display 25. Is displayed for a predetermined time. Further, the CPU 41 displays a new road 55 that is a “Tokai Ring Expressway” on the map 53 by changing the color with a thick line. In addition, the CPU 41 displays guidance information 54 that “a new road to the Mino area has been updated” that guides the “place name” that can be reached by the new road 55 on the upper edge of the display screen. . Further, the guidance information 54 may be guided to the user by voice through the speaker 26.
Subsequently, when a predetermined time has elapsed, the CPU 41 displays a map 57 including “Nagoya Seto Road” on the liquid crystal display 25 for a predetermined time. Further, the CPU 41 displays the new road 58, which is “Nagoya Seto Road”, on the map 57 by changing the color with a thick line. In addition, the CPU 41 displays guidance information 59 that “new road to the direction of Nagakute has been updated” that guides the “place name” that can be reached by the new road 58 on the upper edge of the display screen. . Further, the guidance information 59 may be guided to the user through the speaker 26 by voice.

  As a result, the user sequentially displays the maps 53 and 57 including the new roads 55 and 58 stored in the RAM 42 in the order of distance from the vehicle position (home position), and the displayed new roads. Since each of the guide information 54 and 59 for guiding the “place name” that can be reached by 55 and 58 is notified, the user map obtained by updating the navigation map information 38 is updated after the navigation map information 38 is updated. You can know the convenience more accurately. If the navigation map information 38 is not updated, the user's convenience obtained by updating the navigation map information 38 can be accurately known, and whether or not the navigation map information 38 is updated is accurately determined. be able to.

As shown in FIG. 9, each map 53, 57 is repeated a predetermined number of times (for example, 2 to 5 times), and sequentially for a predetermined time (for example, about 3 to 30 seconds). You may make it display.
Further, a switch button is displayed on the display screen shown in FIG. 9, and the maps 53 and 57 can be switched and displayed by clicking the switch button via the operation unit 24 or pressing down on the touch panel. Also good.
Further, each map including the new road such as each map 53, 57 shown in FIG. 9 may be displayed at a time, and the map selected via the operation unit 24 may be displayed in an enlarged manner.
Further, in step 202 in FIG. 8, the new roads are displayed in order from the new road that is closest to the own vehicle position, but may be displayed in order from the new road that is far from the own vehicle position, or in the order stored in the RAM 42 in the above step 9 and step 103. It may be displayed.

1 is a block diagram illustrating a map information distribution system according to Embodiment 1. FIG. It is the block diagram which showed the navigation apparatus of the map information delivery system. It is a flowchart of the update content guidance processing program which alert | reports the new road etc. of the update map data which the navigation apparatus which concerns on Example 1 performs. It is a subflowchart which shows the subprocess of the alerting | reporting process 1 of FIG. It is a figure which shows an example of the list display displayed by step 21 of FIG. It is a figure which shows an example of the display of the map containing the selected new road displayed at step 23 of FIG. It is a flowchart of the update content guidance processing program which alert | reports the new road etc. of the update map data which the map information delivery system which concerns on Example 2 performs. It is a subflowchart which shows the sub process of the alerting | reporting process 2 which the navigation apparatus which concerns on another Example performs instead of the sub process of the alerting | reporting process 1. FIG. It is a figure which shows an example of the display of the map containing the new road displayed by step 202 of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Map information delivery system 2 Navigation apparatus 3 Map information delivery center 4 Network 10 Server 11 CPU
12 RAM
13 ROM
14 Center side map information DB
16 Center side communication device 17 Update map information 23 Navigation control unit 25 Liquid crystal display 27 Communication device 37 Navigation side map information DB
38 Navi Map Information 41 CPU
42 RAM
43 ROM
51 List 53, 57 Map 54, 59 Guide Information 55, 58 New Road

Claims (10)

In a navigation apparatus comprising map information storage means for storing updated map information including new road information, and notification control means for controlling to display and notify the new road on a map of a display device,
Own vehicle position detecting means for detecting the own vehicle position;
New road search means for searching for a new road from the updated map information;
A destination setting unit that sets as a destination the both end points reads both end points of the retrieved new road by the new road retrieval means,
And route searching means for searching a route before Symbol their destinations from the vehicle position,
Determining means for determining whether or not the new road is included in the route searched by the route searching means;
If it is determined by the determining means that a new road is included, a place name search means for searching for a place name where a destination on the terminal side of the new road exists;
Updated road storage means for storing the place name searched by the place name searching means and the new road determined to be included in the route in association with each other;
With
The navigation apparatus characterized in that the notification control means notifies a new road stored in the updated road storage means and a place name corresponding to the new road. The notification control means includes
List display means for creating a list in which the new road stored in the updated road storage means and the place names corresponding to the new road are associated and displayed on the display device;
A selection means capable of selecting any new road or place name from the list;
Have
The notification control means displays a map including the new road selected by the selection means on the display device, and notifies the guide information for guiding the place name corresponding to the selected new road. The navigation device according to claim 1. The notification control means includes
Calculating means for calculating the distance to the new road stored in the updated road storage means;
Order determining means for assigning a predetermined order to the new road based on the distance to the new road calculated by the calculating means;
Have
The notification control means sequentially displays a map including the new road stored in the updated road storage means on the display device according to the predetermined order, and guide information for guiding a place name corresponding to the displayed new road. The navigation device according to claim 1, wherein the navigation device is notified. Before SL new roads retrieval means, the navigation device according to any one of claims 1 to 3, characterized in that to search for new road that the existing within a predetermined distance range from the vehicle position. The navigation apparatus according to any one of claims 1 to 4, wherein the place name search unit uses a place name as an administrative division where the destination on the terminal side exists. In a map information distribution system having a navigation device and updating map information stored in the navigation device based on update information distributed from a map information distribution center,
The navigation device
Own vehicle position detecting means for detecting the own vehicle position;
Navigation-side map information storage means for storing map information;
The map information distribution center includes the creation time information for specifying the creation time of map information stored in the navigation-side map information storage means and the own vehicle position information for specifying the own vehicle position detected by the own vehicle position detection means. A creation time transmission means to transmit to,
Based on the new road information for specifying the new road distributed from the map information distribution center, the place name information for specifying the place name corresponding to the new road in the new road information, and the map information including the new road Notification control means for controlling to notify the new road and the place name corresponding to the new road;
Have
The map information distribution center
Creation time storage means for storing the creation time information and the vehicle position information transmitted by the creation time transmission means;
New road search means for specifying the map information on the navigation side based on the creation time information, specifying the latest map information, and searching for a new road from the map information and the latest map information on the navigation side,
A destination setting unit that sets as a destination the both end points reads both end points of the retrieved new road by the new road retrieval means,
And route searching means for searching on the basis of a route before Symbol their destinations from the vehicle position thus specified to the vehicle position information to the latest map information,
Determining means for determining whether or not the new road is included in the route searched by the route searching means;
If it is determined by the determining means that a new road is included, a place name search means for searching for a place name where a destination on the terminal side of the new road exists;
Updated road storage means for storing the place name searched by the place name searching means and the new road determined to be included in the route in association with each other;
New road information for specifying a new road stored in the updated road storage means, place name information for specifying a place name corresponding to the new road, and map information including the new road are provided to the navigation device. Delivery means for delivery;
A map information distribution system comprising: The notification control means includes
A list display means for creating a list in which a new road and a place name corresponding to the new road are associated with each other based on the new road information and the place name information and displaying the list on a display device;
A selection means capable of selecting any new road or place name from the list;
Have
The notification control means displays a map including the new road selected by the selection means on the display device, and notifies the guide information for guiding the place name corresponding to the selected new road. The map information distribution system according to claim 6. The notification control means includes
Calculating means for calculating a distance to the new road based on the new road information;
Order determining means for assigning a predetermined order to the new road based on the distance to the new road calculated by the calculating means;
Have
The notification control means sequentially displays a map including a new road on the display device according to the predetermined order, and notifies guide information for guiding a place name corresponding to the displayed new road. 6. The map information distribution system according to 6.   The map information distribution system according to any one of claims 6 to 8, wherein the new road search means searches for a new road existing within a predetermined distance from the vehicle position. 10. The map information distribution system according to claim 6, wherein the place name search unit uses a place name as an administrative division in which the destination on the terminal side exists.

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