JP4742916B2 - Navigation system - Google Patents

Description

  The present invention relates to a navigation system, and more particularly to a navigation system that distributes facility information from an information distribution center to a navigation 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. This navigation device detects the current position of a 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. 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, various navigation systems for distributing facility information from an information distribution center to a navigation device have been proposed.
For example, a navigation system that provides information from an information distribution center to a navigation device, wherein the navigation device detects a current position, means for transmitting the current position and user identification data to the information distribution center, The information distribution center includes means for storing facility information, means for receiving the current position and user identification data transmitted from the navigation device, and the storage based on the current position and user identification data. There is a navigation system having means for retrieving facility information from means for performing and means for transmitting facility information obtained by retrieval to the navigation device (see, for example, Patent Document 1).
Japanese Unexamined Patent Publication No. 2002-73668 (paragraphs (0016) to (0038), FIGS. 1 to 6)

In the navigation system described in Patent Document 1 described above, based on the user identification data and the current position data, the user's attributes existing around the current position or facility information that matches the user's preferences are searched for and the user is searched. Can be provided.
However, when there are multiple facilities of the same genre around the current location, the characteristics of each facility, such as how it is evaluated in the local area, from the relationship between the facility and the region There is a problem that it is difficult to distinguish.

  Therefore, the present invention has been made to solve the above-described problems, and even when the user visits an unknown land, the facility information including characteristics viewed from the relationship between the facility and the region is given to the user. It is an object of the present invention to provide a navigation system that can be provided and that allows a user to easily select a popular local facility.

In order to achieve the object, the navigation system according to claim 1 includes a first receiving means (27) for receiving facility information and a guidance means (25) for guiding the received facility information (2). And an information distribution center (3) having information distribution means (17) for distributing facility information to the navigation device, wherein the navigation device (2) is parked at the facility. Specific information transmission that transmits specific information including facility identification data and user identification data to the information distribution center when it is determined that the vehicle has been parked. includes a means (23, 27), wherein the information distribution center (3), said second receiving means for receiving unique information (17), the parking history before Symbol facilities serial The parking history storing means (20), with local vehicle determining means for determining whether the land based vehicle based on the facility identification data and user identification data contained in the received the specific information (10), wherein If it is determined that the local vehicle by local vehicle determining unit, the parking history storage means stores as the parking history local vehicle, if it is determined not to be local vehicle by the local vehicle determining means, said First storage control means (10) for controlling to store as a parking history of a general vehicle in a parking history storage means , and the facility information is the locality of the facility stored in the parking history storage means characterized in that it includes information about the parking history of the vehicle and the parking history of the general vehicle.

The navigation system according to claim 2 is the navigation system (1) according to claim 1, wherein the information distribution center (3) is the locality of the facility stored in the parking history storage means (20). based on the parking history of the vehicle and the parking history of the general vehicle, local rate calculating means for calculating a local rate is the percentage of parking history local vehicle to total parking history with the local vehicle and general vehicle (10) And the facility information includes the local rate.

A navigation system according to claim 3 is the navigation system (1) according to claim 1 or 2, wherein the information distribution center (3) exists in an area within a predetermined range from the location of the facility. When it is determined that the vehicle is a local vehicle by the facility extraction means (10, 20) for extracting other facilities belonging to the same genre and the local vehicle determination means, based on the user identification data included in the received unique information A travel time calculation means (10) for calculating a travel time of each route by searching a route from the home to each of the facility and the other facility, and a travel of each route calculated by the travel time calculation means Based on the time, it is determined whether or not there is the other facility that can arrive from the home in a required time of a predetermined ratio or less with respect to the required time from the home to the facility. When it is determined by the determination means (10) and the facility determination means that there is the other facility that can be reached from the home in a required time of a predetermined ratio or less with respect to the required time from the home to the facility, the parking stored in the history storage unit as the parking history local Good vehicle of the local vehicle, home from the other, which can arrive from home with the following durations predetermined rate for the required time to the facility by the facility determining means When it is determined that there is no facility, the parking history storage means has second storage control means (10) for controlling to store the parking history of the local general vehicle among the local vehicles, The facility information includes local information regarding a parking history of the local vehicle and a parking history of the local general vehicle.

The navigation system according to claim 4 is the navigation system (1) according to claim 3, wherein the information distribution center (3) parks the local vehicle at the facility stored in the parking history storage means. Based on the history and the parking history of the general vehicle, the local preference rate calculating means (10) calculates a local preference rate that is a ratio of the parking history of the local preference vehicle to the total parking history of the local preference vehicle and the local generic vehicle. ), And the local information includes the local commitment rate.

  The navigation system according to claim 5 is the navigation system (1) according to any one of claims 1 to 4, wherein the facility identification data includes own vehicle position data specifying a current position of the own vehicle. It is characterized by including.

A navigation system according to claim 6 is the navigation system (1) according to any one of claims 1 to 5, wherein the information distribution center (3) includes facility identification data included in the received unique information. Based on the vehicle identification number (10) for identifying a predetermined area including the location of the facility, and the user identification data includes a vehicle registration number of the own vehicle and a home position issued from a registration organization that registers the vehicle. The local vehicle determination means (10) includes information, and the vehicle registration number is issued to a vehicle in the predetermined area, or the home position information belongs to the predetermined area And determining that the vehicle is a local vehicle.

Further, in the navigation system according to claim 7, in the navigation system (1) according to claim 6, the area specifying means (10) registers the vehicle based on the facility identification data included in the received unique information. The jurisdiction including the location of the facility under the jurisdiction of the registration organization is specified as the predetermined area.

  Furthermore, the navigation system according to claim 8 is the navigation system (1) according to any one of claims 1 to 7, wherein the parking determination means (23, 21) parks at the facility for a predetermined time or more. In this case, it is determined that the vehicle is parked at the facility.

In the navigation system according to claim 1 having the above-described configuration, first, when the navigation device determines that the vehicle is parked at the facility, the navigation device transmits unique information including the facility identification data and the user identification data to the information distribution center. The information distribution center, determines whether the land based vehicle based on the facility identification data and user identification data contained in the received specific information. And when it determines with it being a local vehicle, an information delivery center memorize | stores as a parking log | history of the local vehicle of an applicable facility. Further, when it is determined that the vehicle is not a local vehicle, the information distribution center stores it as a parking history of a general vehicle of the corresponding facility. After that, the information distribution center distributes the facility information including information about a parking history of car history and the general vehicle of the local vehicle of the stored facility to the navigation device. Further, the navigation device guides the received facility information to the user.

Thus, the information distribution center, the information about the the parking history parking history and general vehicles facilities local vehicle it is possible to deliver to the navigation device as the facility information. In addition, the user, even when the visited the strange land, for information about a parking history of car history and the general vehicle of facilities local vehicle is guided as a facility information, known only to locals facility (for example, Such as restaurants, cake shops, Japanese confectionery stores, etc.), etc., and it is possible to obtain facility information including characteristics seen from the relationship between the facility and the area where the facility is located, and select the facility that suits the purpose It becomes possible.

Further, in the navigation system according to claim 2, the information distribution center, based on the parking history parking history and general vehicles facilities local vehicle parking history local vehicle to total parking history with local vehicle and general vehicles percentage at which to calculate the local rate of, for the information on the parking history parking history and general vehicles facilities local vehicle, it is possible to deliver to the navigation apparatus including the local rate, the user, Even if you visit an unknown land, you can objectively know the percentage popular with local people from the distributed facility information, and you can select the facility that suits your purpose more quickly Become. For example, when the local rate is high for facilities such as theme parks, the user can determine that the facility is highly valuable for daily use. In addition, regarding facilities where there are differences in comfort among customers, such as coffee shops and hobby shops, it is possible to select facilities more appropriately and quickly even at unknown travel destinations by referring to the local rate It becomes.

In the navigation system according to claim 3, when the information distribution center determines that the vehicle is a local vehicle, the information distribution center determines a route from the home to the parked facility based on the user identification data included in the received unique information. The travel time of the route is calculated by searching. Further, another facility belonging to the same genre existing in an area within a predetermined range from the location of this facility is extracted, a route from the home to the other facility is searched, and a travel time of the route is calculated. If the information distribution center determines that there is another facility that can arrive from the home in a required time less than a predetermined rate than the required time of the route from the home to the parked facility, the information distribution center displays the parking history to the facility. It memorizes as a parking history of a local car among local vehicles. In addition, if the information distribution center determines that there is no other facility that can arrive from the home in a required time that is less than a predetermined rate than the required time of the route from the home to the facility that has been parked, the information distribution center displays the parking history of the facility. It memorize | stores as a parking log | history of a local general vehicle among local vehicles. Thereafter, the information distribution center distributes the facility information including the local information regarding the parking history of the stored local vehicle and the local general vehicle of the stored facility to the navigation device. Further, the navigation device guides the facility information received to the user.
As a result, even if the user visits an unknown land, the local information on the parking history of the local special vehicle and local general vehicle included in the distributed facility information can be used to gain the reputation and popularity of the facility locals. It is possible to know the difference and quickly select a facility that meets the purpose. For example, regarding restaurants, hospitals, etc., it is possible to easily determine whether there is a line-up shop or a local highly evaluated hospital.

In a navigation system according to claim 4, the information distribution center on the basis of the parking history parking history and general vehicles facilities local vehicle, local Good vehicle to total parking history with local Good vehicle and local general vehicles It is possible to calculate the local commitment rate, which is the ratio of parking history, and distribute it to the navigation device including this local commitment rate in the facility information, so even when the user visits an unknown land, the distribution It is possible to objectively know the difference in reputation and popularity among the locals of the facility from the local commitment rate of the facility information that has been made, and it becomes possible to select a facility that suits the purpose more accurately.

  In the navigation system according to claim 5, since the facility identification data includes own vehicle position data for specifying the current position of the own vehicle, the information distribution center calculates a coordinate position on the map from the own vehicle position data. Thus, it is possible to easily identify the parked facility from the coordinate position.

In the navigation system according to claim 6, the information distribution center specifies a predetermined area including the location of the corresponding facility based on the facility identification data included in the received unique information. The information distribution center is issued to a vehicle in a predetermined area including the location of the facility with the vehicle registration number of the own vehicle issued from a registration organization that registers the vehicle included in the user identification data received from the navigation device. Or if the location information of the home belongs to a predetermined area including the location of the facility, it is determined that the vehicle is a local vehicle, so that it is possible to accurately identify the local vehicle regarding the location of the facility. .

  In the navigation system according to claim 7, the information distribution center predetermines a jurisdiction including the location of the facility under the jurisdiction of the registration organization that registers the vehicle based on the facility identification data included in the unique information received from the navigation device. A local area where the facility is located as an area can be specified within at least the prefecture area. As a result, even when the user visits an unknown prefecture or the like, information on the parking history of the facility including the vehicle in the prefecture and the parking history of the vehicle from outside the prefecture regarding the facility is guided as facility information. It is possible to obtain facility information that includes features from the viewpoint of the relationship between the facility and the citizens of the prefecture, such as facilities that only people in the prefecture know (such as restaurants, cake shops, Japanese confectionery stores, etc.) It becomes possible to select a facility suitable for the purpose.

Furthermore, in the navigation system according to claim 8, the navigation device includes the facility identification data and the user identification data when it is determined that the facility has parked in the facility for a predetermined time or longer (for example, about 30 minutes or longer). Information is transmitted to the information distribution center. Thereby, the information distribution center can acquire the parking history of the local vehicle and the parking history of the general vehicle of the facility with higher reliability based on the received unique information.

  Hereinafter, a navigation system according to an embodiment of the present invention will be described in detail with reference to the drawings based on an embodiment.

  First, a schematic configuration of the navigation system 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a navigation system 1 according to the present embodiment.

  As shown in FIG. 1, a navigation system 1 according to this embodiment includes a navigation device 2 and an information distribution center 3 that distributes update information for updating map information to the navigation device 2 and facility information related to facilities described later. The network 4 is basically configured. The navigation device 2 and the information distribution center 3 are configured to be able to transmit and receive various types of information via the network 4.

In addition, a road traffic information center (VICS (registered trademark)) 5 is connected to the network 4, and the navigation device 2 and the information distribution center 3 are connected to the police, Japan, via the network 4. Traffic information such as road traffic congestion information and traffic regulation information created by collecting information of a traffic control system such as a road corporation can be received every predetermined time. The traffic information is, for example, detailed information on road traffic information such as road traffic information related to road traffic jams, traffic regulation information due to road construction, construction work, and the like. In the case of road traffic information, the detailed information includes a VICS link ID (to be described later), the actual length of the traffic, the time required to pass through the traffic, the level of traffic (no traffic / congested / separated traffic, etc.), and traffic Vehicle speed, travel time, traveling direction of traffic jam lane, time when traffic jam is expected to be resolved, etc.In the case of traffic regulation information, the duration of VICS link ID, road construction, building construction, etc., which will be described later, no traffic, one-way alternating traffic, The type of traffic regulation such as lane regulation, the time zone of traffic regulation, etc.
The configuration of the navigation device 2 will be described in detail later with reference to FIG.

  As shown in FIG. 1, the information distribution center 3 includes a server 10, a center side map information DB 14 as a map information recording unit connected to the server 10, a navigation update history information DB 15, a center side traffic information DB 16, The information (genre, store name, address, telephone number, business hours, access time, etc.) regarding the side communication device 17 and the facilities (restaurant, coffee shop, Japanese restaurant, sports center, hospital, municipal office, etc.). ) As facility information. 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. Based on specific information including information update processing, the current position of the host vehicle, the vehicle registration number (number plate number) and the registered home position transmitted from the navigation device 2 to be described later, the parking history of the facility is obtained. Parking history creation processing (Figure) that is created and stored as local information 20A in the facility information DB 20 And a facility information distribution process (see FIG. 6) for creating facility information of a predetermined genre from the facility information DB 20 based on a request from the navigation device 2 described later and distributing the facility information to the navigation device 2. An internal storage device such as a ROM 13 in which various control programs 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 18 that is basic map information for updating the map information created in the information distribution center 3 and stored in the navigation device 2 is classified for each version. Is 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 18 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.

Further, as will be described later, the center-side map information DB 14 includes “location”, “telephone number”, etc. of the nationwide transportation branch office and automobile inspection registration office as a registration organization for registering vehicles, as well as each transportation branch office and automobile. Stores information data related to the jurisdiction of the inspection / registration office and the type of automobile registration number (number of the number plate) issued by each transportation branch office and automobile inspection / registration office.
For example, as the transportation branch office and automobile inspection registration office, Aichi Transportation branch office, Komaki automobile inspection registration office, etc. are stored. In addition, the jurisdiction of each transportation branch office and the automobile inspection and registration office is the jurisdiction of the Aichi transportation branch office, "Nagoya City, Handa City, Tsushima City, ..., Kaifu County, Chita County" In addition, “Ichinomiya City, Seto City, Kasugai City,..., Nishi Kasugai County, Niwa County”, etc. are stored as jurisdictions under the jurisdiction of the Komaki Motor Vehicle Inspection Registration Office. In addition, as the vehicle registration number issued by each transportation branch office and the automobile inspection registration office, “Nagoya” as the “number name” of the automobile registration number issued by the Aichi transportation branch office, and the vehicle registration number issued by the Komaki automobile inspection registration office “Owari Komaki” or the like is stored as the “number name” of the number.

  Further, the update map information 18 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 regarding each intersection, node data regarding node points, link data regarding roads (road links) as a kind of facility, search data for searching for routes, POIs such as stores as a kind of facility of Interest), store data, search data for searching 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 A node attribute indicating whether or not is a node corresponding to an intersection, a connection link number list which is a list of link IDs which are identification numbers of links connected to the node, and a list of node numbers of nodes adjacent to the node via the link Are recorded on the adjacent node number list, the height (altitude) of each node point, and the like.

  In addition, as link data, for each road link constituting the road (hereinafter referred to as “link”), the width of the road to which the link belongs, the gradient, the cant, the bank, the road surface condition, the number of road lanes, Data representing the number of lanes decreasing, width narrowing, railroad crossings, etc. for corners, curvature radius, intersections, T-junctions, corner entrances and exits, etc. Data representing uphill roads are recorded for road types, including roads such as national roads, prefectural roads, and narrow streets, as well as toll roads such as national highways, urban highways, general toll roads, and toll bridges. The 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 when searching and displaying a route to a set destination is recorded, and the distance and road width of a link that forms a right / left turn or road when passing through a node. The cost data used to calculate the weight of each node (hereinafter referred to as “cost”) determined by the road type, etc., and the route selected by the route search are displayed on the map of the liquid crystal display 25. It consists of route display data.

  In addition, as store data (hereinafter referred to as “facility data”), POI data such as hotels, hospitals, gas stations, parking lots, and tourist facilities in each region is recorded together with an ID that identifies the POI. 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 information distribution center 3 uses the latest version of the update map information 18 stored in the center-side map information DB 14 at the timing when a request is made from the navigation device 2, and the navigation device 2. Update the map information stored in. Specifically, in the navigation system 1 according to the present embodiment, when there is a distribution request for the update map information 18 from the navigation device 2, update information for updating to the newest update map information 18. Is delivered 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 update map information 18 may be transmitted. Necessary minimum information for updating from the map information stored in the current navigation device to the newest update map information 18 (only information on the update portion including the new road information for specifying 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 center-side traffic information DB 16 stores current traffic information 19A, which is information related to traffic congestion on the current road, created by collecting traffic information received from the road traffic information center (VICS) 5. The center side traffic information DB 16 stores statistical traffic information 19B, which is statistical traffic information relating to traffic jams and the like created in the past. This statistical traffic information 19B is the event schedule information such as the scheduled location and scheduled date and time of events such as festivals, parades, fireworks festivals, etc. For example, roads around stations and large commercial facilities at specific times every day except weekends. Statistical traffic jam information and traffic jam prediction information such as the occurrence of traffic jams or the occurrence of traffic jams during summer holidays may be included on roads around the beach. Further, in the center side traffic information DB 16, every predetermined time in the future (for example, about every 30 minutes from the current time, about every hour) for each traffic jam created based on the current traffic information 19A and the statistical traffic information 19B. , Approximately every 2 hours, etc.) of predicted traffic information 19C, such as traffic jam prediction information.

  Then, at the timing when the information distribution center 3 receives a request from the navigation device 2, the information distribution center 3 is connected to each intersection based on the current traffic information 19A, the statistical traffic information 19B, and the predicted traffic information 19C stored in the center side traffic information DB 16. Select and distribute traffic information.

  The traffic information received from the road traffic information center (VICS) 5 includes a VICS link ID together with information such as type information, position, distance of a traffic jam section, traffic jam level, and the like. The VICS link ID is an identification number assigned to a VICS link as a travel guide link that is standardized by dividing a road into predetermined intersections. The traffic information also includes information such as the coordinates of the start point and end point in each VICS link, the distance from the start point to the end point, and the like.

Here, the road (link) and the VICS link stored in the center side map information DB 14 are not the same (generally, the road (link) is subdivided more than the VICS link). . Therefore, each road (link) has a conversion table (contrast table) between the road link ID and the VICS link ID given as an identification number, and the corresponding road link ID is specified based on the VICS link ID. Be able to. Therefore, when the navigation apparatus 2 has a conversion table, when a VICS link ID is received from the information distribution center 3 or the road traffic information center (VICS) 5, traffic congestion information or the like is based on the VICS link ID. It is possible to specify the road section on which the traffic information is to be displayed.
However, if the navigation device 2 does not have a conversion table, the road section cannot be specified based on the VICS link ID. Therefore, this conversion table is also stored in the center side traffic information DB 16. Thereby, VICS link ID can be converted into road link ID currently used in the navigation apparatus 2, and traffic information can be transmitted.

  Further, in the facility information DB 20, data regarding various facilities (pubs, restaurants, sports centers, leisure lands, hospitals, etc.) is displayed for each genre corresponding to the facility data (IDs for identifying facilities, etc.). It is composed of data such as “genre”, “facility name”, “address”, “phone number”, “business hours”, “average budget”, and the like. In addition, the facility information DB 20 is provided with local information 20A as a storage area for storing “parking history” representing a history of vehicles parked at each facility as described later (see FIG. 3).

  The information distribution center 3 may be operated by any one of an individual, a company, a group, a local government, a government-related organization, or the like, or may be operated by a road traffic information center (VICS) 5.

  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 constituting the navigation system 1 according to the present embodiment will be described with reference to FIG. FIG. 2 is a block diagram showing the navigation device 2 according to the present embodiment.

  As shown in FIG. 2, the navigation device 2 according to the present 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. The navigation control unit 23 that performs various arithmetic processes, the operation unit 24 that receives input operations from the operator, and information such as a map and facility information (see FIG. 7) described later are displayed to the operator. A liquid crystal display 25, a speaker 26 that outputs voice guidance related to route guidance, and a communication device 27 that communicates with the road traffic information center (VICS) 5, the information distribution center 3, and the like are included. 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 traffic information DB 36, a navigation side map information DB 38, a predetermined program, and the like stored in the hard disk and a hard disk. And a recording head (not shown) which is a driver for writing predetermined data. In this embodiment, a hard disk is used as the external storage device and storage medium of the data recording unit 22, but in addition to the hard disk, a magnetic disk such as a flexible disk can be used as the external storage device. 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, in the navigation side traffic information DB 36, the actual length of the traffic jam received from the road traffic information center (VICS) 5, the cause of the traffic jam, the time when the traffic jam is expected to be eliminated, etc. Current traffic information created from road traffic information such as road traffic information such as road traffic information such as traffic regulation information due to road construction and construction work is stored. The navigation-side traffic information DB 36 stores statistical traffic jam information 37, which is statistical traffic jam information regarding road traffic jams created in the past. This statistical traffic jam information 37 is information on event schedules such as festivals, parades, fireworks festivals, event schedules such as scheduled dates and times, for example, roads around stations and large commercial facilities at specific times every day except weekends. Statistical traffic jam information and traffic jam prediction information such as the occurrence of traffic jams or the occurrence of traffic jams during summer holidays may be included on roads around the beach.

The navigation-side map information DB 38 stores navigation map information 39 that is used for travel guidance and route search of the navigation device 2 and that is to be updated by the information distribution center 3. Here, the navigation map information 39 is composed of various information necessary for route guidance and map display in the same way as the update map information 18. For example, the new map information and 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 38 are updated by downloading update information distributed from the 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, traffic information received from the information distribution center 3, facility information, and the like are stored in a facility described below for a predetermined time or more. ROM 43 in which processing programs such as parking information transmission processing (see FIG. 3) executed when the vehicle is parked and facility information request processing (see FIG. 6) for requesting transmission of facility information to the information distribution center 3 described later are stored; Internal storage device such as flash memory 44 for storing the program read from the ROM 43, time And a measuring timer 45 and the like. 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 this 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. 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.

  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 selects a genre of a facility, which will be described later, to the information distribution center 3. It is operated when making an information distribution request or the like (see FIG. 6), and includes various keys and a plurality of operation switches. 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, the liquid crystal display 25 displays a route guidance screen on which a map based on the navigation map information 39 is displayed and traffic information on each link is displayed, and the current position of the own vehicle (hereinafter referred to as “own vehicle position” as described later). In addition to a facility guidance screen (see FIG. 7) that displays facility information of facilities existing within a predetermined range (for example, within a radius of 500 m to 3 km), operation guidance, operation menu, and key guidance The guide route from the current location to the destination, guidance information along the guide route, traffic information, news, weather forecast, time, mail, TV program, etc. are displayed. 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 outputs voice guidance or the like that guides traveling along the guidance route based on an instruction from the navigation control unit 23. Here, examples of the voice guidance to be guided include “200m ahead, turn right at XX intersection”, “Now, the next national road XX is congested”. 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 information distribution center 3, and transmits / receives updated map information, facility information, and the like of the latest version to / from the information distribution center 3. Further, in addition to the information distribution center 3, the communication device 27 includes information such as traffic congestion information, regulation information, parking information, traffic accident information, and service area congestion status transmitted from the road traffic information center (VICS) or the like. Receive traffic information consisting of

Next, in the navigation system 1 having the above configuration, the “parking information transmission process” executed when the CPU 41 of the navigation device 2 parks in the facility for a predetermined time or longer (for example, 30 minutes or longer), and information distribution The “parking history creation process” executed when the CPU 11 of the center 3 receives the unique information from the navigation device 2 will be described with reference to FIGS. 3 to 5.
FIG. 3 is a flowchart showing a “parking information transmission process” executed by the navigation device 2 of the navigation system 1 and a “parking history creation process” executed by the information distribution center 3. FIG. 4 is a sub-flowchart showing sub-processing of “local recommendation rate calculation processing” executed by the information distribution center 3 of FIG. FIG. 5 is a sub-flowchart showing a sub-process of “local feeling index calculation process” executed by the information distribution center 3 of FIG.

First, the “parking information transmission process” executed by the CPU 41 of the navigation device 2 will be described with reference to FIG. 3 is stored in the RAM 42 or ROM 43 provided in the navigation device 2 and is executed by the CPU 41 every predetermined time (for example, about every 30 seconds to 3 minutes). ) Is executed.
As shown in FIG. 3, first, in step (hereinafter abbreviated as S) 11, the CPU 41 turns the ignition switch from ON to OFF based on a detection signal transmitted from a vehicle ECU (not shown). (S11: NO), that is, wait for the engine of the own vehicle to stop.

When the ignition switch is turned off (S11: YES), in S12, the CPU 41 reads the time when the ignition switch is turned off from the timer 45 and stores it in the RAM.
Subsequently, in S13, the CPU 41 waits for the ignition switch to be turned on from OFF based on a detection signal transmitted from the vehicle ECU (not shown) (S13: NO), that is, the engine of the own vehicle is started. Wait to do.

  Thereafter, when the ignition switch is turned on (S13: YES), in S14, the CPU 41 reads the time when the ignition switch is turned on from the timer 45 and the time when the ignition switch is turned off from the RAM 42. And whether or not a predetermined time or more (for example, about 30 minutes or more to 1 hour or more) has passed since the ignition switch is turned on until the ignition switch is turned on, that is, a facility parked for a predetermined time or more ( For example, it is a restaurant, a souvenir shop, a shopping center, a hotel, etc.).

  If the predetermined time or more has not elapsed from when the ignition switch is turned off until the ignition switch is turned on (S14: NO), the CPU 41 determines that the vehicle has not parked and stayed at the facility for a predetermined time. Then, the process ends.

On the other hand, if a predetermined time or more has elapsed from when the ignition switch is turned off until it is turned on (S14: YES), the CPU 41 proceeds to the process of S15.
In S15, the CPU 41 registers the vehicle registration number (number of the number plate) issued from the transportation branch office of the own vehicle or the vehicle inspection registration office registered in advance from the flash memory 44 and the location information of the home (for example, The address of the user's home) and is stored in the RAM 42 as “user identification data” that identifies the user and the vehicle to be transmitted to the information center 3. At the same time, the CPU 41 detects the own vehicle position (latitude and longitude indicating the position of the own vehicle on the map) based on the detection result of the current location detection processing unit 21, and uses the own vehicle position data of the facility. It is stored in the RAM 42 as “facility identification data” representing the position. Then, the CPU 41 reads the “user identification data” and “facility identification data” from the RAM 42 again and transmits it to the information distribution center 3 via the communication device 27 as “unique information” of the own vehicle, and then performs the processing. finish.
In addition, although the own vehicle position which is the current position of the own vehicle is detected and stored in the RAM 42 as “facility identification data”, the store name whose address is the own vehicle position based on the navigation map information 39 of the navigation side map information DB 38 The store address, telephone number, etc. may be read out and stored in the RAM 42 as “facility identification data”.

Next, the “parking history creation process” executed by the CPU 11 of the information distribution center 3 will be described with reference to FIG. 3 is stored in the RAM 12 or the ROM 13 provided in the information distribution center 3, and is executed by the CPU 11. FIG.
First, in S111, when the CPU 11 receives the “unique information” transmitted from the navigation device 2 in S15, the CPU 11 extracts “user identification data” and “facility identification data” from the “unique information” and stores them in the RAM 12. Remember. That is, the CPU 11 extracts an automobile registration number (number plate number) and home location information (for example, the home address of the user) as “user identification data” from the received “unique information”. And stored in the RAM 12. Further, the CPU 11 extracts the vehicle position data as “facility identification data” from the received “unique information” and stores it in the RAM 12.

In S112, the CPU 11 again reads out the own vehicle position data, which is “facility identification data”, from the RAM 12, and based on the latest version update map information 18 stored in the center side map information DB 14, Facility data relating to POI of a store or the like that is a type of facility having display data at a position on the map specified by the vehicle position data (for example, an ID that specifies the facility) is extracted. And CPU11 memorize | stores in RAM12 as facility data of the facility which the user parked and visited or stayed.
In S113, the CPU 11 again reads out the own vehicle position data, which is “facility identification data”, from the RAM 12, sets it as the address of a store or the like where the user parked and visited or stayed, and the transportation branch office or automobile having jurisdiction over the address. The inspection registration office is read from the center-side map information DB 14 and stored in the RAM 12 as a transportation branch office or an automobile inspection registration office regarding the visited facility. Further, the CPU 11 reads out the jurisdiction over which the transportation branch office or the automobile inspection / registration office has jurisdiction from the center side map information DB 14 and stores it in the RAM 12 as the jurisdiction over the visited facility.

  For example, when the address of the AAA store, which is a facility extracted from the own vehicle location data, is “Nagoya City Higashi-ku 葵 chome XX number XX”, the CPU 11 determines the transportation branch office or automobile related to the visited facility. “Aichi Transport Office” as the inspection registration office is read from the center side map information DB 14 and stored in the RAM 12. Further, the CPU 11 reads out the jurisdiction areas “Nagoya City, Handa City, Tsushima City,..., Kaifu-gun, Chita-gun” under the jurisdiction of the “Aichi Transport Bureau” from the center-side map information DB 14, and Is stored in the RAM 12 as a jurisdiction regarding

Subsequently, in S114, the CPU 11 again reads out the automobile registration number (number of the license plate) that is “user identification data” from the RAM 12, and the “number name” (for example, “Nagoya”) of the automobile registration number. , “Narashino”, “Owari Komaki”, etc.). The CPU 11 reads the transportation branch office or automobile inspection registration office corresponding to the extracted “number name” from the center side map information DB 14 and stores it in the RAM 12 as the transportation branch office or automobile inspection registration office relating to the user's vehicle. Moreover, CPU11 reads the jurisdiction which this transportation branch office or a motor vehicle inspection registration office has jurisdiction from center side map information DB14, and memorize | stores it in RAM12 as a jurisdiction regarding a user's vehicle.
For example, when the “number name” of the automobile registration number is “Nagoya”, the CPU 11 reads “Aichi Transportation Branch Office” from the center-side map information DB 14 as the transportation branch office or automobile inspection registration office, and transports the user's vehicle. It is stored in the RAM 12 as a branch office or an automobile inspection registration office. In addition, the CPU 11 reads out the jurisdiction areas “Nagoya City, Handa City, Tsushima City,..., Kaifu-Gun, Chita-Gun” under the jurisdiction of the “Aichi Transport Office” from the center-side map information DB 14 and has jurisdiction over the user's vehicle. It is stored in the RAM 12 as an area.

In S115, the CPU 11 executes a sub-process (see FIG. 4) of “local recommended rate calculation process” described later.
Subsequently, in S <b> 116, the CPU 11 ends the process after executing a sub-process (see FIG. 5) of “local feeling index calculation process” described later.

Next, the sub-process of the “local recommendation rate calculation process” executed in S115 will be described with reference to FIG. 4 is stored in the RAM 12 or the ROM 13 provided in the information distribution center 3 and is executed by the CPU 11.
As shown in FIG. 4, first, in S121, the CPU 11 reads out from the RAM 12 a transportation branch office or automobile inspection registration office relating to the visited facility, and a transportation branch office or automobile inspection registration office relating to the user's vehicle, Judgment processing is performed to determine whether or not the vehicles are in a jurisdiction within the jurisdiction of the transportation branch office or automobile inspection / registration office related to the visited facility.

If the transportation branch office or automobile inspection registration office related to the visited facility matches the transportation branch office or automobile inspection registration office related to the user's vehicle (S121: YES), the CPU 11 performs the process of S122. Transition.
In S <b> 122, the CPU 11 determines that the user's vehicle is a “local vehicle” having a local location regarding the facility. Then, the CPU 11 reads the facility data (such as an ID for identifying the facility) from the RAM 12 again, and reads “parking history” representing the history regarding the vehicle parked in the facility corresponding to the facility data from the local information 20A. After “1” is added to “the number of parked local vehicles” constituting this “parking history”, the “parking history” is stored again in the local information 20A, and then the process proceeds to S125.

  The “parking history” stored in the local information 20A corresponding to each facility data indicates the number of local vehicles parked in the facility specified by each facility data (such as an ID for specifying the facility). Of “local vehicles parked”, “number of non-local vehicles parked” representing the number of non-local vehicles parked in the facility, and local attention vehicles described later (see FIG. 5) parked in the facility “Number of parked local vehicles” indicating the number of vehicles, “Number of parked local vehicles” indicating the number of local general vehicles parked at the facility (see FIG. 5), and local people visiting the facility “Local recommendation rate (local rate)” that represents the percentage of people, and “Local commitment index (local commitment rate)” that represents the percentage of local people far from the facility among the locals who visit the facility It is composed of

On the other hand, when the transportation branch office or automobile inspection registration office regarding the visited facility does not match the transportation branch office or automobile inspection registration office regarding the user's vehicle (S121: NO), the CPU 11 performs the process of S123. Transition.
In S123, the CPU 11 reads out the “home location information” of the user stored in S111 from the RAM 12, and reads out the jurisdiction regarding the visited facility stored in S113 from the RAM 12. Then, a determination process for determining whether or not the “user's home address” specified by the “home location information” exists in the jurisdiction relating to the visited facility is executed.
For example, the user's address is “Nishi-ku Nishi-cho, Nagoya-cho, ○ -go-no-go”, and the jurisdiction for the facility at the destination is “Nagoya City, Handa City, Tsushima City,. In the case of “Chita-gun”, the CPU 11 determines that the user's home is within the jurisdiction regarding the visited facility.

When the “user's home address” is present in the jurisdiction regarding the visited facility (S123: YES), the CPU 11 proceeds to the process of S122.
On the other hand, when the “user's home address” does not exist in the jurisdiction regarding the visited facility (S123: NO), the CPU 11 proceeds to the process of S124.
In S <b> 124, the CPU 11 determines that the user's vehicle is a “non-local vehicle” that does not have a local location regarding the facility, that is, has a location other than the local location. Then, the CPU 11 reads the facility data (such as an ID for identifying the facility) from the RAM 12 again, and reads “parking history” representing the history regarding the vehicle parked in the facility corresponding to the facility data from the local information 20A. Then, after adding “1” to the “number of parked vehicles other than the local vehicle” constituting this “parking history”, the “parking history” is stored again in the local information 20A, and the process proceeds to S125.

  Subsequently, in S125, the CPU 11 reads the facility data (such as an ID for identifying the facility) from the RAM 12 again, and displays “parking history” representing the history regarding the vehicle parked in the facility corresponding to the facility data. Read from the local information 20A, and the "parking number of local vehicles" that make up this "parking history" is the value obtained by adding the number of "parking number of non-local vehicles" to the value of "parking number of local vehicles" After substituting the divided value into the “recommendation rate” constituting the “parking history”, the “parking history” is stored again in the local information 20A, and then the sub-process is terminated and the process returns to the main flowchart.

Next, the sub-process of the “local commitment index calculation process” executed in S116 will be described with reference to FIG. Note that the programs shown in the flowcharts of S131 to S137 in FIG. 5 are stored in the RAM 12 and the ROM 13 provided in the information distribution center 3, and are executed by the CPU 11.
As shown in FIG. 5, first, in S131 and S132, the CPU 11 executes the processes of S121 and S123.
Then, the transportation branch office or automobile inspection registration office related to the visited facility does not match the transportation branch office or automobile inspection registration office related to the user's vehicle (S131: NO), and the “user's home address” is When it does not exist in the jurisdiction regarding the visited facility (S132: NO), the CPU 11 determines that the user's vehicle is a “non-local vehicle” having a location other than the local location, and the sub-processing is performed. To return to the main flowchart.

On the other hand, when the transportation branch office or automobile inspection registration office regarding the visited facility coincides with the transportation branch office or automobile inspection registration office regarding the user's vehicle (S131: YES), or "user's home address" is When it exists in the jurisdiction regarding the said visited facility (S132: YES), CPU11 judges that a user's vehicle is a "local vehicle" having a local location, and transfers to the process of S133. .
In S133, the CPU 11 reads out the facility data (for example, an ID for specifying the facility) of the facility visited by the user parked and stayed stored in S112 from the RAM 12, and the facility corresponding to the facility data. Information (for example, genre such as a Western restaurant or Japanese restaurant, store name, address, telephone number, business hours, etc.) is read from the facility information DB 20 and stored in the RAM 12. Then, the CPU 11 reads the “address” and “genre” of the facility information from the RAM 12 again, and based on the latest version of the updated map information 18 and the facility information DB 20 stored in the center-side map information DB 14. Then, a determination process for determining whether or not there is a facility of the same genre within a predetermined range from the “address” of the facility information (for example, within a radius of 500 m to 3 km or approximately 2 km to 3 km square) is executed.

When there is no facility of the same genre within a predetermined range (for example, within a radius of 500 m to 3 km or about 2 km to 3 km square) from the “address” of the facility information (S133: NO), the CPU 11 , The process proceeds to S134.
In S <b> 134, the CPU 11 reads the facility data (such as an ID for identifying the facility) from the RAM 12 again, and displays “parking history” representing the history regarding the vehicle parked in the facility corresponding to the facility data from the local information 20 </ b> A. After reading and adding “1” to the “number of parked local vehicles” constituting this “parking history”, the “parking history” is stored again in the local information 20A, and then the process proceeds to S137.

On the other hand, if there is a facility of the same genre within a predetermined range (for example, within a radius of 500 m to 3 km or about 2 km to 3 km square) from the “address” of the facility information (S133: YES), the CPU 11 , The process proceeds to S135.
In S135, the CPU 11 sets the facility information of each facility of the same genre within this predetermined range (for example, the genre such as a Western restaurant or Japanese restaurant, store name, address, telephone number, business hours, etc.). Read from the DB 20 and store in the RAM 12. Then, the CPU 11 reads out the “home location information” of the user stored in S111 from the RAM 12, and updates the latest version of each route from the user's home to the address of the visited facility and each facility of the same genre. The travel time of each route from the user's home to the facility of the visited site and the addresses of the facilities of the same genre is calculated and stored in the RAM 12. Subsequently, the CPU 11 does not exceed a predetermined percentage of the travel time of the route from the user's home to the address of the visited facility in the travel time of each route from the user's home to the address of each facility of the same genre. A determination process is performed to determine whether there is any (for example, 70% or less).

The travel time of each route from the user's home to the address of each facility of the same genre is equal to or less than a predetermined percentage of the travel time of the route from the user's home to the address of the visited facility (for example, 7 If there is nothing (S135: NO), the CPU 11 proceeds to the process in S134.
On the other hand, in the travel time of each route from the user's home to the address of each facility of the same genre, the travel time of the route from the user's home to the address of the visited facility is equal to or less than a predetermined ratio (for example, 7 If there is something that is less than or equal to 10% (S135: YES), the CPU 11 has a particular preference for the visited place, that is, the visited place is a preferred facility over other facilities of the same genre. If it is determined that there is, the process proceeds to S136.
In S136, the CPU 11 reads the facility data (such as an ID for identifying the facility) from the RAM 12 again, and obtains “parking history” representing the history regarding the vehicle parked in the facility corresponding to the facility data from the local information 20A. After reading and adding “1” to “the number of parked local vehicles” constituting this “parking history”, the “parking history” is stored again in the local information 20A, and then the process proceeds to S137.

  Subsequently, in S137, the CPU 11 reads the facility data (such as an ID for identifying the facility) from the RAM 12 again, and stores the “parking history” representing the history regarding the vehicle parked in the facility corresponding to the facility data. Read from the information 20A, and add the value of “Number of parked local vehicles” to the value of “Number of parked local vehicles” to the value of “Number of parked local vehicles”. After dividing the value, that is, the value of “the number of parked local vehicles” by the value of “the number of parked local vehicles” into the “local discipline index” constituting the “parking history”, After “parking history” is stored again in the local information 20A, the sub-process is terminated and the process returns to the main flowchart.

Next, in the navigation system 1 having the above-described configuration, the “facility information request process” executed when the CPU 41 of the navigation device 2 requests facility information of a predetermined genre from the information distribution center 3, and the information distribution center 3. The “facility information distribution process” that is executed when the CPU 11 receives a facility information request command for requesting facility information of a predetermined genre from the navigation device 2 will be described with reference to FIGS. 6 and 7.
FIG. 6 is a flowchart showing “facility information request processing” executed by the navigation device 2 of the navigation system 1 and “facility information distribution processing” executed by the information distribution center 3. FIG. 7 is a diagram showing an example of the display contents of the facility information executed in step 24 by the navigation device 2 of FIG.

First, the “facility information request process” executed by the CPU 41 of the navigation device 2 will be described with reference to FIG. Note that the programs shown in the flowcharts of S21 to S24 in FIG. 6 are stored in the RAM 42 and the ROM 43 provided in the navigation device 2, and are executed by the CPU 41.
As shown in FIG. 6, first, in S <b> 21, the CPU 41 has a “facility information search button” (not shown) displayed on the liquid crystal display 25 and a “facility information search key” (not shown) provided on the operation unit 24. When pressed, a facility information search screen (not shown) is displayed, and the input search condition is stored in the RAM 42 and set as a search condition to be transmitted to the information distribution center 3.
For example, a touch panel is provided in front of the liquid crystal display 25, and a facility is searched for via the operation unit 24 when the user presses items such as “genre name” and “average budget” displayed on the display screen. It is configured to be able to input search conditions. In addition, an “OK” button is displayed on the display screen. When the user presses the “OK” button, the CPU 41 stores the input search condition in the RAM 42 and transmits it to the information distribution center 3 as a search condition. Set.

In S <b> 22, the CPU 41 detects the own vehicle position (latitude and longitude indicating the position of the own vehicle on the map) based on the detection result of the current location detection processing unit 21, and stores it in the RAM 42. Then, the CPU 42 reads out the own vehicle position data and the search conditions for items such as “genre name” and “average budget” from the RAM 42 again, and provides information as a “facility information request command” for requesting facility information of a predetermined genre. Transmit to the distribution center 3.
Thereafter, in S <b> 23, the CPU 41 receives the list information of the facility information of the predetermined genre created in the predetermined format distributed from the information distribution center 3 via the communication device 27 and stores it in the RAM 42.
Subsequently, in S24, the list information of the facility information of the predetermined genre is displayed in a predetermined format on the display screen of the liquid crystal display 25 (see FIG. 7), and the process ends.

  Next, “facility information distribution processing” executed by the CPU 11 of the information distribution center 3 will be described with reference to FIG. Note that the programs shown in the flowcharts of S211 to S213 in FIG. 6 are stored in the RAM 12 and the ROM 13 provided in the information distribution center 3, and are executed by the CPU 11.

  First, in S211, when the CPU 11 receives the “facility information request command” transmitted from the navigation device 2 in S22, from the “facility information request command”, the “vehicle position data” and the “search condition” (genre name) , Average budget, etc.) are extracted and stored in the RAM 12. Then, the CPU 11 reads out the “own vehicle position data” and the “genre” of the “search condition” (for example, the genre such as Japanese food, Western food, Chinese food, tea, liquor, etc.) from the RAM 12 again, and the latest version Based on the update map information 18 and the facility information DB 20, within a predetermined range from the “own vehicle position” (for example, within a radius of 500 m to 3 km, approximately 2 km to 3 km square, within the municipality of the vehicle position). Search for facilities that belong to the same “genre”.

  And CPU11 is facility information (for example, a store name, an address, a telephone number, a parking lot, an average budget etc.) of each facility of the same "genre" within the predetermined range from this searched "own vehicle position". Is read from the facility information DB 20 and stored in the RAM 12. Further, the CPU 11 reads out the “local recommended rate” and the “local preference index” of each facility of the same “genre” within the predetermined range from the searched “own vehicle position” from the local information 20A of the facility information DB 20, Store in the RAM 12. In addition, the CPU 11 reads the “address” and “own vehicle position data” of each facility of the same “genre” searched again from the RAM 12, searches the route from the own vehicle position to each facility, and searches for the own vehicle. The distance and direction from the position to each facility are calculated and stored in the RAM 12.

  Subsequently, in S212, the CPU 11 determines the facility information (for example, store name, address, telephone number, parking lot, average budget, etc.) of each facility of the same “genre” and “local recommended rate” of each facility. And “local commitment index” and the distance and direction from the own vehicle position to each facility are read from the RAM 12, and each facility information etc. is sorted in order from the own vehicle position, and for each facility belonging to the same “genre” The search result list information is created in a predetermined format and stored in the RAM 12.

Note that evaluation data of “local recommended facilities” is created based on the “local recommended rate” and used as evaluation information for each facility in the list information. For example, the evaluation data for “local recommended facilities” is that “local recommended rate” is 60% or higher for S rank, “local recommended rate” is 40% to 60% A rank, and “local recommended rate” is 20% to 40%. % Is B rank, and “local recommendation rate” is expressed as a result of four-level evaluation with 20% or less C rank (see FIG. 7).
In addition, evaluation data of “locally attached facilities” is created based on the “locally attached index” and used as evaluation information for each facility in the list information. For example, the evaluation data for “locally selected facilities” includes double circles for facilities with a “localized index” of 0.5 or higher, single circles for facilities with a “localized index” of 0.3 or higher, The index is expressed as a result of a three-level evaluation in which facilities with an index of less than 0.3 are unmarked (see FIG. 7).

  Thereafter, in S213, the CPU 11 reads out the list information of the search result for each facility belonging to the same “genre” from the RAM 12, distributes it to the navigation device 2 via the center side communication device 17, and ends the processing.

Here, an example of the display screen of the list information of the facility information of the predetermined genre displayed on the liquid crystal display 25 of the navigation device 2 in S24 will be described based on FIG.
As shown in FIG. 7, first, the CPU 42 displays the “store name” of each facility according to the facility list information received from the information distribution center 3 in the order from the own vehicle position, as in the display screen of the upper liquid crystal display 25. ", The direction and distance from the vehicle position, and the evaluation of the" local recommended facilities "(four-level evaluation of S, A, B, C rank). For example, firstly, “AAA store” is displayed at a position 500 m to the right of the vehicle position, and “A rank” is displayed for the evaluation of “local recommended facility”.
In addition, the top edge of the display screen displays that the number of facilities whose “local recommended facilities” are rated S to B is “4”. In addition, a “locally selected facility” button for instructing display of the evaluation result of “locally selected facility” is arranged at the lower edge of the display screen.

  When the user presses the touch panel on the “locally selected facility” button 51, the evaluation of “locally selected facility” (double) is displayed on the left side of each store name as in the display screen of the lower liquid crystal display 25. A three-step evaluation (circle, single circle, no mark) is displayed. For example, thirdly, it is displayed that there is a “CCC store” at a position 500 m ahead of the vehicle, and that the “local recommended facility” is evaluated as “B rank”. On the left side of the name “CCC store”, there is a double circle mark indicating that the “local commitment index” is a facility with a locality index of 0.5 or more, that is, a facility visited locally by a local person. .

  As described above in detail, in the navigation system 1 according to the present embodiment, when the CPU 41 of the navigation device 2 determines that the facility has parked for a predetermined time or longer, the facility identification data and the user identification are obtained when leaving the facility. The unique information including the data is transmitted to the information distribution center 3 (S11 to S15). Then, the CPU 11 of the information distribution center 3 specifies the jurisdiction of the transportation branch office or the automobile inspection / registration office having jurisdiction over the location of the corresponding facility based on the facility identification data included in the received unique information. Further, the CPU 11 determines whether or not the vehicle is a local vehicle staying in the jurisdiction for a certain period or longer based on the user identification data included in the received unique information. And when it determines with it being a local vehicle, CPU11 memorize | stores in the local information 20A as a parking log | history of the local vehicle parked in the facility. If it is determined that the vehicle is not a local vehicle, the CPU 11 stores the parking history of the general vehicle parked in the facility in the local information 20A. And CPU11 calculates the local recommendation rate which is the ratio of the parking number of a local vehicle with respect to the total parking number of a local vehicle and a general vehicle, and memorize | stores it in the local information 20A (S111-S115).

If the CPU 11 determines that the vehicle is a local vehicle, the CPU 11 searches for a route from the home to the parked facility based on the user identification data included in the received unique information, and calculates the travel time of the route. . Further, the CPU 11 extracts other facilities belonging to the same genre that exist in an area within a predetermined range from the location of the facility from the update map information 18 and the facility information DB 20, and determines a route from the home to the other facility. Search and calculate travel time for each route. If the CPU 11 determines that there is another facility that can arrive from the home in a required time that is less than or equal to the required time for the route from the home to the parked facility, the CPU 11 records the parking history of the facility in the local vehicle. Is stored in the local information 20A as the parking history of the local vehicle. Further, when the CPU 11 determines that there is no other facility that can arrive from the home in a required time that is equal to or less than a predetermined time than the time required for the route from the home to the parked facility, the CPU 11 records the parking history of the facility in the local vehicle. Is stored in the local information 20A as a parking history of a local general vehicle. Then, based on the parking history of the facility, the CPU 11 calculates a local sticking index, which is a ratio of the number of parked local vehicles to the total number of parked local and general vehicles, and stores it in the local information 20A ( S116).
Thereafter, when the CPU 11 receives a request command for facility information of a predetermined genre from the navigation device 2, the facility information of each corresponding facility includes a 4-step evaluation of the local recommendation rate and a 3-step evaluation of the local commitment index. Delivered to the navigation device 2 (S21 to S22, S211 to S213). Moreover, CPU42 of the navigation apparatus 2 guides this received facility information to a user (S23-S24).

  Thereby, even when the user visits an unknown land, the evaluation result (S rank to C rank) based on the local recommendation rate of the facility information received from the information distribution center 3 is popular with the local people of the facility. It is possible to know the ratio, and it is possible to select a facility suitable for the purpose more quickly. For example, when the evaluation result based on the local recommendation rate is high for facilities such as theme parks (S rank to B rank), the user can determine that the facility is highly valuable for daily use. Become. In addition, regarding the facilities where comfort varies depending on the customer base, such as coffee shops and hobby shops, the user can further improve the facilities even at unknown travel destinations by referring to the evaluation results based on the local recommendation rate. And it becomes possible to select quickly. In addition, the user can objectively know the difference in reputation and popularity among local people in the facility from the evaluation results (double circle to MUJI) based on the local attention index of the distributed facility information, and there was a purpose. The facility can be selected more accurately.

  In addition, the CPU 11 of the information distribution center 3 has the “number name” of the automobile registration number included in the user identification data received from the navigation device 2 within the jurisdiction of the transportation branch office or automobile inspection registration office that has jurisdiction over the location of the facility. It is possible to accurately identify the local vehicle regarding the location of the facility to determine that it is a local vehicle if it is delivered to the vehicle or if the home location belongs to this jurisdiction Become.

  Further, the CPU 11 of the information distribution center 3 has the facility located in the jurisdiction of the transportation branch office or the automobile inspection / registration office having jurisdiction over the location of the facility based on the facility identification data included in the unique information received from the navigation device 2. In order to be a local area, this local area can be specified within at least the prefecture area. As a result, even if the user visits an unknown prefecture, etc., the local recommendation rate of the relevant facility and the evaluation result of the local sticking index including the parking history of the vehicle in the prefecture and the vehicle from outside the prefecture regarding the facility are displayed in the facility. Because it is guided as information, the facility information including features seen from the relevance between the facility and the citizens of the prefecture, such as facilities that only people in the prefecture know (such as restaurants, cake shops, Japanese confectionery stores, etc.) It becomes possible to obtain the facility, and it is possible to select a facility suitable for the purpose.

  In addition, this invention is not limited to a present Example, 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.

  (A) In this embodiment, in S14 to S15, the CPU 42 of the navigation device 2 transmits unique information to the information distribution center 3 when the facility is parked for more than a predetermined time. When set, the unique information may be transmitted to the information distribution center 3.

(B) In this embodiment, in S135, the CPU 11 of the information distribution center 3 during the travel time of each route from the user's home to the address of each facility of the same genre, from the user's home to the destination A determination process was performed to determine whether or not there is a predetermined percentage or less (for example, 70% or less) of the travel time of the route to the address of the facility. Whether or not the total travel time of each route to the facility address is equal to or less than a predetermined ratio (for example, 70% or less) of the travel time of the route from the user's home to the address of the visited facility. May be determined. And when all the travel time of each route from the user's home to the address of each facility of the same genre is less than a predetermined percentage of the travel time of the route from the user's home to the address of the visited facility The CPU 11 determines that the user is particular about the visited place, that is, considers that the visited place is a preferred facility over other facilities of the same genre, and proceeds to the process of S136. On the other hand, some of the travel time of each route from the user's home to the address of each facility of the same genre is longer than a predetermined percentage of the travel time of the route from the user's home to the address of the visited facility. In this case, the CPU 11 proceeds to the process at S134.
As a result, the CPU 11 can more accurately determine that the user is particular about the visited place, that is, that the visited place is more preferable than other facilities of the same genre. .

It is the block diagram which showed the navigation system which concerns on a present Example. It is the block diagram which showed the navigation apparatus of the navigation system. It is a flowchart which shows the "parking information transmission process" which the navigation apparatus of a navigation system performs, and the "parking history creation process" which an information delivery center performs. 4 is a sub-flowchart showing a sub-process of “local recommendation rate calculation process” executed by the information distribution center of FIG. 3. FIG. 4 is a sub-flowchart showing a sub-process of “local feeling index calculation process” executed by the information distribution center of FIG. 3. It is a flowchart which shows the "facility information request | requirement process" which the navigation apparatus of a navigation system performs, and the "facility information distribution process" which an information distribution center performs. It is a figure which shows an example of the display content of the facility information which the navigation apparatus of FIG. 6 performs in step 24. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation system 2 Navigation apparatus 3 Information distribution center 4 Network 10 Server 11, 41 CPU
12, 42 RAM
13, 43 ROM
14 Center side map information DB
17 Center side communication device 18 Update map information 20 Facility information DB
20A Local information 23 Navigation control unit 25 Liquid crystal display 27 Communication device 38 Navigation side map information DB
39 Navi Map Information 105 Locally selected facility buttons

Claims (8)

A navigation device having first receiving means for receiving facility information and guidance means for guiding the received facility information;
An information distribution center having information distribution means for distributing facility information to the navigation device;
In a navigation system with
The navigation device
Parking determination means for determining whether or not the vehicle is parked at the facility;
If it is determined that the vehicle is parked at the facility, unique information transmission means for transmitting unique information including the facility identification data and the user identification data to the information distribution center;
Have
The information distribution center
Second receiving means for receiving the unique information;
A parking history storage means for storing the parking history of previous Symbol facility,
And local vehicle determining means for determining whether the land based vehicle based on the facility identification data and user identification data contained in the received the specific information,
When it is determined that the vehicle is a local vehicle by the local vehicle determination unit, the parking history storage unit stores the parking history of the local vehicle, and when the local vehicle determination unit determines that the vehicle is not a local vehicle, A first storage control means for controlling the parking history storage means to store the parking history of a general vehicle;
Have
The facility information, the navigation system characterized in that it includes information about the parking history with parking history of the local vehicle of the parking history storage means stored the facility the general vehicle. The information distribution center
The parking history storage means stored the facility to the parking history local vehicle and based on the parking history of the general vehicle, a ratio of parking history local vehicle to total parking history with the local vehicle and general vehicles Has a local rate calculation means to calculate a local rate,
The navigation system according to claim 1, wherein the facility information includes the local rate. The information distribution center
Facility extraction means for extracting other facilities belonging to the same genre existing in an area within a predetermined range from the location of the facility;
If the local vehicle determination means determines that the vehicle is a local vehicle, the route from the home to each of the facility and the other facility is searched based on the user identification data included in the received unique information. Travel time calculating means for calculating the travel time of each route;
Based on the travel time of each route calculated by the travel time calculation means, it is determined whether or not there is the other facility that can arrive from the home with a required time of a predetermined ratio or less with respect to the required time from the home to the facility. Facility judging means to perform,
When it is determined by the facility determination means that there is the other facility that can arrive from the home in a required time of a predetermined ratio or less with respect to the required time from the home to the facility , the local vehicle is stored in the parking history storage means. Stored as a parking history of a local vehicle, and it is determined by the facility determination means that there is no other facility that can arrive from the home in a required time of a predetermined ratio or less with respect to the required time from the home to the facility. In this case, the second storage control means for controlling the parking history storage means to store the parking history of the local ordinary vehicle among the local vehicles,
Have
The navigation system according to claim 1, wherein the facility information includes local information regarding a parking history of the local vehicle and a parking history of the local general vehicle. The information distribution center
The parking history storage means stored said facility on the basis of the the parking history local vehicle and the parking history of the general vehicle, the local Good vehicle and local Good vehicle parking history for total parking history with local general vehicles Has a local commitment rate calculation means to calculate the local commitment rate, which is the ratio of
The navigation system according to claim 3, wherein the local information includes the local attention rate.   The navigation system according to any one of claims 1 to 4, wherein the facility identification data includes own vehicle position data for specifying a current position of the own vehicle. The information distribution center has area specifying means for specifying a predetermined area including the location of the facility based on the facility identification data included in the received unique information,
The user identification data includes an automobile registration number of the own vehicle issued from a registration organization that registers the vehicle and home position information,
The local vehicle determination means determines that the vehicle is a local vehicle when the automobile registration number is issued to a vehicle in the predetermined area, or when the location information of the home belongs to the predetermined area. The navigation system according to any one of claims 1 to 5, wherein: The area specifying means specifies, as the predetermined area, a jurisdiction including a location of the facility under the jurisdiction of a registration organization that registers a vehicle based on facility identification data included in the received unique information. 6. The navigation system according to 6 .   The navigation system according to any one of claims 1 to 7, wherein the parking determination unit determines that the vehicle is parked at the facility when the vehicle is parked at the facility for a predetermined time or more.

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