JP2012255676A - Route guidance system, information providing device, route guidance terminal device, and route guidance method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a route guidance system which can present useful destination candidates as highly ranked candidates to a user when presenting destination candidates.SOLUTION: An information providing device 300 comprises: map information storage means for storing map information; facility category storage means for storing categories of facilities and information about areas to which the facilities belong; facility information storage means for storing numerical information about facilities which dynamically changes; facility information update means for updating or adding numerical information; and facility information enumeration means for transmitting combination of facilities and numerical information extracted from the facility category storage means and the facility information storage means as information about destination candidates to a route guidance terminal device. A route guidance terminal device 100 comprises: terminal side facility information update means for notifying the facility information update means of information of facilities at a destination; and terminal side facility information enumeration means for creating a list of the destination candidates by sorting the information about the destination candidates.

Description

  The present invention relates to a route guidance system including an information providing device and a route guidance terminal device.

  With the widespread use of mobile communication terminal devices with GPS (Global Positioning System) reception function, many systems have been developed that provide advertisements such as stores in association with location information of mobile terminal devices. For example, Patent Documents 1 to 3 listed below disclose techniques for presenting information related to the location of a mobile terminal device and facilities around a destination. It presents registered information in a specific area. Patent Documents 4 to 7 listed below disclose techniques related to a system that takes in information such as traffic information such as traffic congestion that dynamically changes and guides the optimum route to the destination at that time.

JP 2006-279182 A JP 2005-107827 A JP 2002-215636 A JP 2002-310702 A JP 2003-058982 A JP 2002-156236 A JP 2003-294470 A

  However, according to the conventional technique, it is not possible to determine a route in consideration of the situation of a facility or the like that is a dynamically changing destination. For example, when there are a plurality of facilities and parking lots around the destination, the user generally desires a vacant place. For this reason, there is a problem that the user cannot select an optimum destination when there are a plurality of candidates.

  The present invention has been made in view of the above, and an object of the present invention is to obtain a route guidance system capable of presenting candidates that are useful to the user as higher candidates when presenting destination candidates.

  In order to solve the above-described problems and achieve the object, the present invention is a route guidance system including an information providing device and a route guidance terminal device connected to the information providing device via a network, The information providing device includes a map information storing unit storing map information including map images, information on regions and facilities included in the region of each map image, and a map image stored in the map information storing unit. The facility classification storage means for storing the classification of the facility corresponding to the facility and the area to which the facility belongs, and numerical information that dynamically changes for the facilities included in the map image stored in the map information storage means The stored facility information storage means and the facility information update for updating or adding the numerical information stored in the facility information storage means based on the notified facility information of the destination. Means, and for the classification and area of the facility at the designated destination, the corresponding facility is extracted from the facility classification storage means, the numerical information regarding the extracted facility is extracted from the facility information storage means, and the extracted facility and numerical value are extracted. Facility information listing means for transmitting a combination of information as destination candidate information to the route guidance terminal device, and the route guidance terminal device sends information on the destination facility to the facility information updating means of the information providing device. The terminal-side facility information updating means for notifying the information and the facility information listing means of the information providing device are designated with the classification of the area of departure and the facility of the destination and the area information, and obtained from the facility information listing means. Terminal-side facility information listing means for rearranging the destination candidate information in the descending order of the numerical information to create a destination candidate list. And butterflies.

  According to the present invention, there is an effect that a candidate useful for a user can be presented as an upper candidate when presenting a destination candidate.

FIG. 1 is a diagram illustrating a configuration example of a route guidance system. FIG. 2 is a diagram illustrating a configuration example of the information providing apparatus. FIG. 3 is a diagram illustrating information stored in the map information storage unit. FIG. 4 is a diagram illustrating information stored in the facility classification storage unit. FIG. 5 is a diagram illustrating information stored in the facility information storage unit. FIG. 6 is a diagram illustrating a configuration example of the route guidance terminal device. FIG. 7 is a flowchart showing an operation until a destination candidate is displayed. FIG. 8 is a flowchart showing the route guidance operation. FIG. 9 is a flowchart showing the facility information update operation. FIG. 10 is a diagram illustrating a configuration example of the information providing apparatus. FIG. 11 is a diagram illustrating a configuration example of the route guidance terminal device. FIG. 12 is a diagram illustrating information stored in the map information storage unit. FIG. 13 is a diagram illustrating information stored in the facility classification storage unit. FIG. 14 is a diagram illustrating information stored in the facility information storage unit. FIG. 15 is a flowchart showing an operation until a destination candidate is displayed. FIG. 16 is a flowchart showing an operation of enumerating all data that matches the category of the facility to which the facility belongs. FIG. 17 is a flowchart showing an operation of finding and enumerating data that matches the facility field. FIG. 18 is a flowchart showing the route guidance operation. FIG. 19 is a flowchart showing an operation of acquiring map information. FIG. 20 is a flowchart showing the facility information update operation. FIG. 21 is a flowchart showing an operation until a destination candidate is displayed.

  Embodiments of a route guidance system according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating a configuration example of a route guidance system. The route guidance system includes a route guidance terminal device 100 and an information providing device 300 connected to the route guidance terminal device 100 via a network 200. In general, a plurality of route guidance terminal devices 100 are connected to one information providing device 300.

  First, the configuration of the information providing apparatus 300 will be described. FIG. 2 is a diagram illustrating a configuration example of the information providing apparatus 300. The information providing apparatus 300 includes a network I / F unit 301, a map information extraction unit 302, a facility information extraction unit 304, a facility information update unit 305, a facility information listing unit 306, a map information storage unit 313, a facility It comprises a classification storage unit 314 and a facility information storage unit 315.

  The network I / F unit 301 is an interface that connects to the network 200 and communicates with the route guidance terminal device 100.

  When the area is designated, the map information extraction unit 302 extracts map information including a map image associated with the area from the map information storage unit 313.

  When the facility is specified, the facility information extraction unit 304 extracts information corresponding to the specified facility from the information stored in the facility information storage unit 315. A plurality of information may be associated with one facility.

  In the facility information stored in the facility information storage unit 315, the facility information update unit 305 increases or decreases the value according to the status of entering or exiting the facility when the information regarding the facility represents the number of people or vehicles.

  When the facility classification and region of the departure place and the destination are designated, the facility information listing unit 306 is based on the data stored in the facility classification storage unit 314 and the facility information storage unit 315 based on the designated conditions. Information is extracted and listed as destination candidates in a list format. At this time, destination candidates are presented in a useful order to the user who has specified the departure place and the like. As will be described later, since the route guidance terminal device 100 has the same configuration, operations up to the enumeration may be performed here.

  The map information storage unit 313 records a plurality of map images as map information in association with information including a list of areas and facilities as regions included in the map. FIG. 3 is a diagram showing information stored in the map information storage unit 313. The map information storage unit 313 stores a map, a map range, and a map image as map image data. In order to identify the map, numbers are given as an example, but other methods may be used as long as they can be identified. The range of the map indicates an area included in the map. The map image is map image data provided to the route guidance terminal device 100 or the like. Corresponding to each map, map identification information, a region name, and a region range are stored as region information included in the map. As an area, for example, a region is assumed to be a unit of prefecture → city → town → district, and in the case of facility classification, for example, an amusement park, park, restaurant, gas station, department store, etc. are assumed. However, the present invention is not limited to this.

  The facility classification storage unit 314 stores all facilities on the map stored in the map information storage unit 313 and classifications corresponding to the facilities. FIG. 4 is a diagram illustrating information stored in the facility classification storage unit 314. The facility classification storage unit 314 stores a facility, a region to which the facility belongs, and a facility classification. For each facility on the map stored in the map information storage unit 313, the area where the facility is located and the classification of the facility are stored in association with each other.

  The facility information storage unit 315 stores all the facilities on the map stored in the map information storage unit 313 and information corresponding to the facilities. FIG. 5 is a diagram illustrating information stored in the facility information storage unit 315. The facility information storage unit 315 stores facilities, facility information, and values that are numerical information. There may be no value. In addition, there are cases where there is a plurality of facility information for the facility, and there are cases where the facility information and values change dynamically. For example, when the facility is a parking lot, the current parking number of the parking lot is considered as the facility information, and the value is assumed to change dynamically according to the current situation. The facility information may include the current number of people heading to the facility, the number of people in the facility, the capacity of the facility, and the like.

  Next, the configuration of the route guidance terminal device 100 will be described. FIG. 6 is a diagram illustrating a configuration example of the route guidance terminal device 100. The route guidance terminal device 100 includes an input unit 101, a display unit 102, a control unit 103, a map information extraction unit 104, a facility information extraction unit 105, a facility information update unit 106, a facility information listing unit 107, Network I / F unit 108.

  The input unit 101 receives settings such as a destination and a facility from the user.

  The display unit 102 displays destination candidate information provided from the information providing apparatus 300 and information such as a map image for route guidance.

  The control unit 103 outputs information such as the destination and facility received by the input unit 101 to the subsequent configuration, and also displays information such as destination candidates and map images acquired from the information providing apparatus 300 to the display unit 102. Output.

  The map information extraction unit 104 calls the map information extraction unit 302 of the information providing apparatus 300 via the network 200 and acquires map information from the map information storage unit 313 of the information providing apparatus 300.

  The facility information extraction unit 105 calls the facility information extraction unit 304 of the information providing device 300 via the network 200 and acquires the facility information from the facility information storage unit 315 of the information providing device 300.

  The facility information update unit 106 is running for the facility when the facility information is the current number of people heading to the facility, the number of people at the facility, the capacity of the facility, etc. When the state changes, such as arrival at the facility or leaving the facility, the facility information update unit 305 of the information providing apparatus 300 is notified.

  The facility information listing unit 107 calls the facility information listing unit 306 of the information providing apparatus 300 via the network 200 to acquire a list of destination candidates. Alternatively, a list of destination candidates is created based on the information acquired from the facility information listing unit 306.

  The network I / F unit 108 is an interface that is connected to the network 200 and communicates with the information providing apparatus 300.

  Next, the route guidance operation in the route guidance system will be described. For example, when a user travels or makes a business trip, without specifying the destination clearly, roughly specifying the area including the destination and the type of facility, obtaining information on candidates that meet the specified conditions, There are cases where it is desired to select a desired facility from among them. In such a case, the user selects a destination by confirming detailed information of each candidate facility. Therefore, in the route guidance system, information can be provided to the user by displaying the information of each facility in a list format as a destination candidate. However, even if a large number of candidates are displayed, it is impossible for the user to determine which information is optimal. Therefore, it is desirable to display information such as facilities that are most necessary for the user and useful for the user as upper candidates.

  Thus, in the route guidance system, when the user designates the classification or area of the facility at the destination, the operation until the information about the facility is ranked and displayed as a destination candidate for the user will be described. In the description of each device described above, each of the information providing device 300 and the route guidance terminal device 100 includes a configuration (facility information enumeration unit) that creates a list of destination candidates. A case will be described in which destination candidates are listed in the information providing apparatus 300 and a list of destination candidates listed in the route guidance terminal apparatus 100 is created. FIG. 7 is a flowchart showing an operation until a destination candidate is displayed in the route guidance system.

  In the route guidance terminal device 100, the input unit 101 receives designation of the destination area and facility classification from the user (step S101). As a method of input by the user, a method of selecting from candidates displayed on the display unit 102 or a method of direct input can be considered, but a general input method may be used, and the method is not particularly limited. At this time, in the route guidance terminal device 100, information on the area of the departure place is acquired together by a position measurement function such as GPS in the device itself (step S102). As a general method for obtaining the position (departure point) information of the device itself, there is a GPS or the like, but the method is not limited to this.

  Next, in the route guidance terminal device 100, the acquired starting point, destination area, and facility classification information are transferred from the control unit 103 to the facility information listing unit 107. The facility information listing unit 107 transmits the acquired information to the information providing apparatus 300 via the network I / F unit 108 and the network 200 (step S103).

  In the information providing device 300, the facility information listing unit 306 receives the information on the departure point, the destination region, and the facility classification transmitted from the route guidance terminal device 100 via the network I / F unit 301.

  When the facility information enumeration unit 306 is designated as the departure point, the destination region, and the facility classification, it is stored in the facility classification storage unit 314 (the facility, the region to which the facility belongs, the category to which the facility belongs). In the data, all the data that matches the classification of the facility to which the classification of the facility belongs is listed in the area of the destination designated by the field of the area to which the facility belongs (step S104).

  Next, the facility information enumeration unit 306 searches and enumerates all the enumerated data by searching for data that matches the facility field of (facility, facility information, value) stored in the facility information storage unit 315 ( Step S105). Then, the facility information listing unit 306 transmits the listed data to the route guidance terminal device 100 as destination candidate information via the network I / F unit 301 and the network 200 (step S106).

  In the route guidance terminal device 100, the facility information listing unit 107 receives the destination candidate information transmitted from the information providing device 300 via the network I / F unit 108, and lists the received destination candidate information. Is created (step S107).

  The facility information listing unit 107 rearranges the created list in descending order of the value in the facility information (step S108). As a method of rearranging, for example, if the facility is a parking lot, the list is displayed in ascending order of the number of parking lots as information on the facility, and in the order of increasing free space if there is information on the number of parking available. At this time, if there is information on the vehicle heading to the parking lot as information on the facility, this number can be taken into consideration. This is because it is expected to become full in the future.

  In the route guidance terminal device 100, the display unit 102 displays a sorted list of destination candidates via the control unit 103 (step S109). As a result, the route guidance terminal device 100 accepts designation of the departure area, the destination area, and the facility classification of the destination, so that a list of facilities that are easy to use by the user when the facility or parking lot is vacant is obtained. You can get a list.

  In the list displayed on the display unit 102, when a user wants to acquire information on a specific facility, a desired facility (for example, facility name) is designated from the input unit 101. In the route guidance terminal device 100, the designated facility (facility name) is transferred to the facility information extraction unit 105. The facility information extracting unit 105 converts the received facility (facility name) into the facility information extracting unit of the information providing apparatus 300 via the network I / F unit 108, the network 200, and the network I / F unit 301 of the information providing apparatus 300. To 304. The facility information extraction unit 304 extracts data related to the designated facility (facility name) from the facility information storage unit 315, and the route information terminal apparatus flows the extracted data in the reverse flow to the received facility (facility name). The information is transmitted to 100 facility information extraction units 105. In the route guidance terminal device 100, the data of the facility (facility name) is displayed on the display unit 102 via the control unit 103.

  Next, an operation from searching for a route to a destination designated by the user, guiding the user according to the route, and arriving at the destination will be described. FIG. 8 is a flowchart showing a route guidance operation in the route guidance system.

  In the route guidance terminal device 100, when the input unit 101 receives designation of the destination from the displayed list or directly, the route to the destination designated by the search function (not shown) in the own device is displayed. Search is performed, and information on areas passing through the route is listed (step S110). A method of searching for a route to the destination may be a general method existing at present, and is not particularly limited. In addition, when the destination is directly designated and the information on the departure area of the own apparatus is not acquired by GPS or the like, the departure area of the own apparatus is also acquired.

  In the route guidance terminal device 100, information on the area passing the route is transferred to the map information extraction unit 104 via the control unit 103. The map information extraction unit 104 transmits the acquired area information to the information providing apparatus 300 via the network I / F unit 108 and the network 200 (step S111).

  In the information providing apparatus 300, the map information extraction unit 302 receives information on a region passing through the route in the route guidance terminal device 100 via the network I / F unit 301.

  The map information extraction unit 302 acquires map information of the area (map image and area included in the map) from the map information storage unit 313 based on the information of the area passing through the route (step S112). The acquired map information is transmitted from the network I / F unit 301 to the map information extraction unit 104 of the route guidance terminal device 100 (step S113).

  Then, the route guidance terminal device 100 displays a map image or the like that is passing through the display unit 102 via the control unit 103 (step S114). Thereby, in the route guidance terminal device 100, the route to the destination designated by the user can be searched, and map information necessary for route guidance can be acquired.

  Further, in the route guidance terminal device 100, when moving to the destination according to the route guidance, the information regarding the facility set as the destination is updated. Specifically, when the destination is a facility and the route guidance terminal device 100 is mounted on a vehicle and moving, the number of vehicles heading to the facility at the facility and the number of vehicles in the facility are calculated. If managed as facility information, the number of items of each information is increased or decreased according to the state of the vehicle. In this way, in the stage of creating a list of candidate destinations by updating the information of the facilities such as the vehicle heading to the facility and the vehicles in the facility in real time, Can be a candidate. In addition, by taking into account the information of vehicles that are heading to the facility, it is possible to create a list by predicting facilities that are currently vacant but that will be congested in the future.

  FIG. 9 is a flowchart showing an operation of updating facility information in the route guidance system. As a method of updating facility information, when a change occurs in the state such as movement or arrival in the route guidance terminal device 100 (step S115), the facility information update unit 106 updates the information according to the movement state of the own device. The information is transmitted to the information providing apparatus 300 via the network I / F unit 108 and the network 200 (step S116).

  In the information providing apparatus 300, the facility information update unit 305 acquires information on the movement state of the route guidance terminal device 100 via the network I / F unit 301. Then, the facility information update unit 305 updates the value of the facility information stored in the facility information storage unit 315 based on the acquired information (step S117). As a result, the facility information storage unit 315 of the information providing apparatus 300 can always maintain the latest state of the stored facilities.

  As described above, in the present embodiment, in the route guidance system composed of the route guidance terminal device and the information providing device, when the destination area and facility classification are designated in the route guidance terminal device, In the information providing device, the facility that satisfies the conditions of the region and the facility is extracted, and the route guidance terminal device uses the numerical information such as the number of people and cars present in the dynamically changing facility. The useful destination candidates that are easy to use are arranged in order from the top and presented as a list of destination candidates. Thereby, the user can obtain information such as facilities that are easy to use, and can select a destination according to the information.

Embodiment 2. FIG.
In the first embodiment, frequent communication is performed between the route guidance terminal device and the information providing device. If there are many destination candidates, the amount of data increases, and map images are also transmitted and received, resulting in an increase in data size and a longer communication time, and an increase in user communication costs. In the present embodiment, a method for reducing the data amount of communication performed between the route guidance terminal device and the information providing device will be described. A different part from Embodiment 1 is demonstrated.

  The configuration of the route guidance system in the present embodiment is the same as that in the first embodiment, but will be described as the route guidance terminal device 100a and the information providing device 300a.

  First, the configuration of the information providing apparatus 300a will be described. FIG. 10 is a diagram illustrating a configuration example of the information providing apparatus 300a. The information providing apparatus 300a includes a network I / F unit 301, a map information extraction unit 302, a facility classification extraction unit 303, a facility information extraction unit 304, a facility information update unit 305, a facility information listing unit 306, a map An information time stamp acquisition unit 307, a facility classification time stamp acquisition unit 308, a facility information time stamp acquisition unit 309, a map information storage unit 313, a facility classification storage unit 314, and a facility information storage unit 315 are configured. The

  When the facility is specified, the facility classification extraction unit 303 extracts information (a region to which the facility belongs, a classification of the facility) related to the corresponding facility from the data stored in the facility classification storage unit 314.

  When the area is specified, the map information time stamp acquisition unit 307 displays the map image including the area stored in the map information storage unit 313 and the time stamps (time when information is updated) of all the areas included in the map. Extract.

  When the facility is specified, the facility classification time stamp acquisition unit 308 extracts the time stamp (information update time) of the region and classification information for the facility stored in the facility classification storage unit 314.

  When a facility is designated, the facility information time stamp acquisition unit 309 extracts a time stamp (information update time) of information corresponding to the facility stored in the facility information storage unit 315.

  Next, the configuration of the route guidance terminal device 100a will be described. FIG. 11 is a diagram illustrating a configuration example of the route guidance terminal device 100a. The route guidance terminal device 100a includes an input unit 101, a display unit 102, a control unit 103, a map information extraction unit 104, a facility information extraction unit 105, a facility information update unit 106, a facility information listing unit 107, The map information storage unit 112, the facility classification storage unit 113, the facility information storage unit 114, and the network I / F unit 108 are configured.

  The map information storage unit 112 records information including a list of regions and facilities included in the map in association with a plurality of map images. FIG. 12 is a diagram showing information stored in the map information storage unit 112. The configuration is the same as that of the map information storage unit 313 on the information providing device 300a side, but here, the information is stored within the range of information necessary for performing route search in the past by the own device and guiding the route.

  The facility classification storage unit 113 stores all facilities on the map stored in the map information storage unit 112 and classifications corresponding to the facilities. FIG. 13 is a diagram illustrating information stored in the facility classification storage unit 113. The configuration is the same as that of the facility classification storage unit 314 on the information providing apparatus 300a side, but here, the information is stored within the range of information necessary for performing route search in the past by the own device.

  The facility information storage unit 114 stores all facilities on the map recorded in the map information storage unit 112 and information corresponding to the facilities. FIG. 14 is a diagram illustrating information stored in the facility information storage unit 114. The configuration is the same as that of the facility information storage unit 315 on the information providing apparatus 300a side, but here, the information is stored within the range of information necessary for performing route search in the past by the own apparatus.

  Next, the route guidance operation in the route guidance system will be described. Similar to the first embodiment, first, an operation in the route guidance system until information on facilities and the like is ranked for a user and displayed as a destination candidate will be described. FIG. 15 is a flowchart showing an operation until a destination candidate is displayed in the route guidance system.

  In the route guidance terminal device 100a, the input unit 101 receives designation of the destination area and facility classification from the user (step S201). At this time, in the route guidance terminal device 100a, information on the area of the departure place is acquired together by a position measurement function such as GPS in the device itself (step S202).

  Next, in the route guidance terminal device 100a, the acquired starting point, destination and facility information is transferred from the control unit 103 to the facility information listing unit 107 (step S203).

  The facility information enumeration unit 107, when designated as the departure place, destination, and facility classification, is stored in the facility classification storage unit 113 or the facility classification storage unit 314 (facility, area to which the facility belongs, classification to which the facility belongs) In the data in the form of (), all the data corresponding to the classification of the facility to which the classification of the facility belongs is listed in the area of the destination designated by the field of the area to which the facility belongs (step S204).

  Here, the enumeration operation will be described with reference to a flowchart. FIG. 16 is a flowchart showing an operation of enumerating all data that matches the category of the facility to which the facility belongs.

  Since the facility classification storage unit 113 of the route guidance terminal device 100a stores data only within the range in which route guidance has been performed in the past, the facility classification storage unit 113 may not store data related to facilities specified by the user. Therefore, when there is data corresponding to the facility classification storage unit 113 (step S301: Yes), the facility information listing unit 107 sets the facility classification time of the information providing apparatus 300a for all the listed facilities via the network 200. From the stamp acquisition unit 308, a time stamp is acquired for the data of the same facility stored in the facility classification storage unit 314 of the information providing apparatus 300a (step S302).

  The facility information listing unit 107 compares the time stamp when the listed data is stored in the facility classification storage unit 113 of the own device with the time stamp acquired from the facility classification time stamp acquisition unit 308 of the information providing device 300a. (Step S303). As a result of the comparison, when the facility time stamp stored in the facility classification storage unit 314 of the information providing device 300a is newer (step S303: the information providing device is newer), the facility information listing unit 107 passes through the network 200. Then, the facility classification extraction unit 303 of the information providing device 300a is used to extract the data of the corresponding facility from the facility classification storage unit 314 (step S304), and the extracted data corresponds to the facility classification storage unit 113 of the route guidance terminal device 100a. The data to be updated is updated (step S305). When the facility information listing unit 107 updates the data, the facility information listing unit 107 replaces the listed data with the updated data (step S306). As a result of the comparison, when the facility time stamp stored in the facility classification storage unit 113 of the route guidance terminal device 100a is newer (step S303: the route guidance terminal device is newer), the facility information listing unit 107 updates The process is terminated without performing the process.

  On the other hand, when there is no corresponding data in the facility classification storage unit 113 (step S301: No), the facility information listing unit 107 uses the facility classification extraction unit 303 of the information providing apparatus 300a to correspond to the corresponding facility from the facility classification storage unit 314. Is extracted (step S307), and the extracted data is stored in the facility classification storage unit 113 of the route guidance terminal device 100a (step S308).

  Returning to the flowchart of FIG. 15, the facility information listing unit 107 then matches the facility fields of (facility, facility information, value) stored in the facility information storage unit 114 for all the listed data. The data to be searched is found and listed (step S205).

  Here, the enumeration operation will be described with reference to a flowchart. FIG. 17 is a flowchart showing an operation of finding and enumerating data that matches the facility field.

  Since the facility information storage unit 114 of the route guidance terminal device 100a stores data only within the range in which route guidance has been performed in the past, the facility information storage unit 114 may not store data related to facilities specified by the user. Therefore, when there is corresponding data in the facility information storage unit 114 (step S401: Yes), the facility information listing unit 107 sets the facility information time of the information providing apparatus 300a for all the listed facilities via the network 200. A time stamp is acquired from the stamp acquisition unit 309 for data of the same facility stored in the facility information storage unit 315 of the information providing apparatus 300a (step S402).

  The facility information enumeration unit 107 compares the time stamp of the enumerated data stored in the facility information storage unit 114 of the own device with the time stamp acquired from the facility information time stamp acquisition unit 309 of the information providing device 300a. (Step S403). As a result of the comparison, when the facility time stamp stored in the facility information storage unit 315 of the information providing device 300a is newer (step S403: the information providing device is newer), the facility information listing unit 107 includes the facility information extracting unit 105. The corresponding data is extracted from the facility information storage unit 315 using the facility information extraction unit 304 of the information providing device 300a via the network 200 (step S404), and the route guidance terminal device 100a uses the extracted data. The corresponding data in the facility information storage unit 114 is updated (step S405). When the facility information listing unit 107 updates the data, the facility information listing unit 107 replaces the listed data with the updated data (step S406). As a result of the comparison, when the facility time stamp stored in the facility information storage unit 114 of the route guidance terminal device 100a is newer (step S403: the route guidance terminal device is newer), the facility information listing unit 107 updates The process is terminated without performing the process.

  On the other hand, when there is no corresponding data in the facility information storage unit 114 (step S401: No), the facility information listing unit 107 sends the facility information of the information providing apparatus 300a to the facility information extraction unit 105 via the network 200. Corresponding data is extracted from the facility information storage unit 315 using the extraction unit 304 (step S407), and the extracted data is stored in the facility information storage unit 114 of the route guidance terminal device 100a (step S408).

  Returning to the flowchart of FIG. 15, the facility information listing unit 107 creates a list with the listed data (step S206), and sorts the created list in descending order of value in the facility information (step S206). S207). In the route guidance terminal device 100a, the display unit 102 displays the sorted list as a result of the destination candidates via the control unit 103 (step S208).

  In the list displayed on the display unit 102, when a user wants to acquire information on a specific facility, a desired facility (for example, facility name) is designated from the input unit 101. In the route guidance terminal device 100 a, the designated facility (facility name) is transferred to the facility information extraction unit 105. The facility information extraction unit 105 extracts data related to the specified facility (facility name) from the facility information storage unit 114 and displays the extracted data on the display unit 102 via the control unit 103.

  In the above-described processing, it is assumed that the contents of the facility information storage unit 114 are already up-to-date, but there are cases where it is desired to acquire information on a specific facility before a destination candidate is displayed. In this case, in the route guidance terminal device 100a, when a desired facility (for example, facility name) is designated from the input unit 101, the processing in the above-described step S205 (see the flowcharts in FIGS. 15 and 17) is performed. The facility information can be provided with the latest information.

  Next, an operation from searching for a route to a destination designated by the user, guiding the user according to the route, and arriving at the destination will be described. FIG. 18 is a flowchart showing a route guidance operation in the route guidance system.

  In the route guidance terminal device 100a, when the input unit 101 receives designation of the destination from the displayed list or directly, the route to the destination designated by the search function (not shown) in the own device is displayed. Search is performed, and information on areas passing through the route is listed (step S209). In the route guidance terminal device 100a, information on the area passing through the route is transferred to the map information extraction unit 104 via the control unit 103 (step S210).

  The map information extraction unit 104 acquires map information (a map image and an area included in the map) including a region corresponding to the map information storage unit 112 (step S211). Here, since the map information extraction unit 104 of the route guidance terminal device 100a stores the map information only within the range in which the route guidance has been performed in the past, the map information regarding the designated area or the like is not stored. There is. Therefore, the operation of acquiring map information in the map information extraction unit 104 will be described using a flowchart. FIG. 19 is a flowchart showing an operation of acquiring map information.

  If the map information storage unit 112 has map information for the specified area (step S501: Yes), the map information extraction unit 104 transmits the map information time stamp acquisition unit 307 of the information providing apparatus 300a via the network 200. The time stamp of the same map information stored in the map information storage unit 313 of the information providing apparatus 300a is acquired (step S502).

  The map information extraction unit 104 compares the time stamp when the map information is stored in the map information storage unit 112 of the own device with the time stamp acquired from the map information time stamp acquisition unit 307 of the information providing device 300a. (Step S503). As a result of the comparison, when the time stamp of the map information stored in the map information storage unit 313 of the information providing device 300a is newer (step S503: the information providing device is newer), the map information extracting unit 104 passes through the network 200. Then, corresponding map information is extracted from the map information storage unit 313 using the map information extraction unit 302 of the information providing device 300a (step S504), and the map information storage unit 112 of the route guidance terminal device 100a is extracted with the extracted map information. The corresponding map information is updated (step S505). Then, the map information extraction unit 104 extracts updated map information from the map information storage unit 112 (step S506).

  As a result of the comparison, when the time stamp of the map information stored in the map information storage unit 112 of the route guidance terminal device 100a is newer (step S503: the route guidance terminal device side is newer), the map information extraction unit 104 Map information is extracted from the map information storage unit 112 without updating (step S506).

  On the other hand, when there is no corresponding map information in the map information storage unit 112 (step S501: No), the map information extraction unit 104 corresponds from the map information storage unit 313 using the map information extraction unit 302 of the information providing apparatus 300a. Map information is extracted (step S507), and the extracted map information is stored in the map information storage unit 112 of the route guidance terminal device 100a (step S508).

  Returning to the flowchart of FIG. 18, the route guidance terminal device 100 a displays a map image or the like passing through the display unit 102 via the control unit 103 (step S <b> 212). Thereby, in the route guidance terminal device 100a, the route to the destination designated by the user can be searched, and map information necessary for route guidance can be acquired.

  Further, in the route guidance terminal device 100a, when moving to the destination according to the route guidance, the information regarding the facility set as the destination is updated.

  FIG. 20 is a flowchart showing the facility information update operation in the route guidance system. As a method of updating facility information, when a change occurs in the state such as movement or arrival in the route guidance terminal device 100a (step S213), the facility information update unit 106 updates the information according to the movement state of the own device. The information is transmitted to the information providing apparatus 300a via the network I / F unit 108 and the network 200 (step S214).

  In the information providing apparatus 300a, the facility information update unit 305 acquires information on the movement state of the route guidance terminal apparatus 100a via the network I / F unit 301. Then, the facility information update unit 305 updates the value of the facility information stored in the facility information storage unit 315 based on the acquired information (step S215). Accordingly, the facility information storage unit 315 of the information providing apparatus 300a can always maintain the latest state of the stored facility.

  In the route guidance terminal device 100a, the facility information update unit 106 updates the value of the facility information stored in the facility information storage unit 114 (step S216).

  As described above, in the present embodiment, the route guidance terminal device stores the map image, facility information, and facility classification data when the route guidance was performed in the past, and stores it in the own device. Route guidance is performed using the obtained data. Then, the route guidance terminal device acquires data from the information providing device only when the data stored in the information providing device is updated or when a facility or the like not stored in the own device is set as the destination. I did it. As a result, when the route guidance terminal device can perform route guidance using the data stored in its own device, it is not necessary to acquire data from the information providing device, and therefore, between the route guidance terminal device and the information providing device. It is possible to reduce the data amount of communication performed.

  In the above description, the route guidance terminal device 100a is configured to include three storage units, but is not limited thereto. As described above, the map information storage unit 112 is necessary at the stage of actually guiding the route, but is not necessary for the operation until the destination candidate is displayed. Therefore, the route guidance terminal device 100a may not include the map information storage unit 112. Compared to the case where the route guidance terminal device 100a includes three storage units, the data amount of communication performed between the route guidance terminal device 100a and the information providing device 300a when actually performing route guidance increases. The amount of communication data until the destination candidates are displayed can be made equal. In addition, the route guidance terminal device 100a can have a simple configuration.

Embodiment 3 FIG.
In the first embodiment, the method of creating the destination candidate list on the route guidance terminal device side has been described. In the present embodiment, a method for creating a list of destination candidates on the information providing apparatus side will be described. A different part from Embodiment 1 is demonstrated.

  The configuration of the route guidance system, the configuration of the route guidance terminal device 100, and the configuration of the information providing device 300 are the same as those in the first embodiment. FIG. 21 is a flowchart showing an operation until a destination candidate is displayed in the route guidance system.

  In the route guidance terminal device 100, the input unit 101 receives designation of the destination area and facility classification from the user (step S601). As a method of input by the user, a method of selecting from candidates displayed on the display unit 102 or a method of direct input can be considered, but a general input method may be used, and the method is not particularly limited. At this time, in the route guidance terminal device 100, information on the area of the departure place is acquired together by a position measurement function such as GPS in the device itself (step S602). As a general method for obtaining the position (departure point) information of the device itself, there is a GPS or the like, but the method is not limited to this.

  Next, in the route guidance terminal device 100, the acquired departure point, destination, and facility classification information is transferred from the control unit 103 to the facility information listing unit 107. The facility information listing unit 107 transmits the acquired information to the information providing apparatus 300 via the network I / F unit 108 and the network 200 (step S603).

  In the information providing device 300, the facility information listing unit 306 receives the information on the departure point, destination, and facility classification transmitted from the route guidance terminal device 100 via the network I / F unit 301.

  When the facility information enumeration unit 306 is designated with a departure point, a destination, and a facility classification, the facility information enumeration unit 306 stores the data in the form of (the facility, the region to which the facility belongs, the facility to which the facility belongs) stored in the facility classification storage unit 314. All the data that match the classification of the facility to which the classification to which the facility belongs and the classification of the facility to which the classification to which the facility belongs are listed (step S604).

  Next, the facility information enumeration unit 306 searches for and enumerates data that matches the facility field of (facility, facility information, value) stored in the facility information storage unit 315 for all the enumerated data ( In step S605), a list is created with the enumerated data (step S606).

  Then, the facility information listing unit 306 rearranges the created list in descending order of value in the facility information (step S607). As a method of rearranging, for example, if the facility is a parking lot, the list is displayed in ascending order of the number of parking lots as information on the facility, and in the order of increasing free space if there is information on the number of parking available. At this time, if there is information on the vehicle heading to the parking lot as information on the facility, this number can be taken into consideration. This is because it is expected to become full in the future.

  The facility information listing unit 306 transmits the sorted list to the route guidance terminal device 100 via the network I / F unit 301 and the network 200 as a result of the destination candidate (step S608).

  In the route guidance terminal device 100, when the facility information listing unit 107 receives the list via the network I / F unit 108, the display unit 102 displays the list via the control unit 103 (step S609). As a result, the route guidance terminal device 100 accepts designation of the departure area, the destination area, and the facility classification of the destination, so that a list of facilities that are easy to use by the user when the facility or parking lot is vacant is obtained. You can get a list.

  Note that the operation when the user wants to acquire information on a specific facility in the list being displayed on the display unit 102 is the same as that in the first embodiment. In addition, a route to the destination designated by the user is searched, the user is guided according to the route and arrives at the destination (see the flowchart in FIG. 8), and the facility information update operation (the flowchart in FIG. 9). Reference) is also the same as in the first embodiment.

  In this way, a list of destination candidates is created on the information providing device 300 side, and the route guidance terminal device 100 only displays the list created by the information providing device 300. Can also respond.

  As described above, in the present embodiment, in the route guidance system composed of the route guidance terminal device and the information providing device, when the destination area and facility classification are designated in the route guidance terminal device, The information providing device extracts facilities that meet the conditions for classification of the area and facility, and, based on the number of people and cars present in the dynamically changing facility, the useful destination that is easy for the user to use. The candidates are rearranged in order from the top and presented as a list of destination candidates. Thereby, the user can obtain information such as facilities that are easy to use, and can select a destination according to the information.

  In addition, since the information providing apparatus performs an operation until a destination candidate list is created, the information providing apparatus can also be applied to a cloud type system.

100, 100a Route guidance terminal device 101 Input unit 102 Display unit 103 Control unit 104 Map information extraction unit 105 Facility information extraction unit 106 Facility information update unit 107 Facility information enumeration unit 108 Network I / F unit 112 Map information storage unit 113 Facility classification Storage unit 114 Facility information storage unit 200 Network 300, 300a Information providing device 301 Network I / F unit 302 Map information extraction unit 303 Facility classification extraction unit 304 Facility information extraction unit 305 Facility information update unit 306 Facility information listing unit 307 Map information time Stamp acquisition unit 308 Facility classification time stamp acquisition unit 309 Facility information time stamp acquisition unit 313 Map information storage unit 314 Facility classification storage unit 315 Facility information storage unit

Claims (15)

A route guidance system comprising an information providing device and a route guidance terminal device connected to the information providing device via a network,
The information providing apparatus includes:
Map information storage means for storing map information including map images and information on areas and facilities included in the areas of the map images;
Facility classification storage means for storing the facility classification corresponding to the facility included in the map image stored in the map information storage means and the information of the area to which the facility belongs;
Facility information storage means for storing numerical information that dynamically changes for facilities included in the map image stored in the map information storage means;
Facility information update means for updating or adding the numerical information stored in the facility information storage means based on information of the notified facility at the destination,
For the classification and area of the facility at the designated destination, the relevant facility is extracted from the facility classification storage means, numerical information about the extracted facility is extracted from the facility information storage means, and the combination of the extracted facility and numerical information Facility information listing means for transmitting to the route guidance terminal device as destination candidate information,
With
The route guidance terminal device
Terminal-side facility information updating means for notifying the facility information updating means of the information providing device of information on the destination facility;
The facility information listing unit of the information providing apparatus designates the area of the departure place and the facility of the destination and the information of the region, and the destination candidate information obtained from the facility information listing unit is large in the numerical information. A terminal-side facility information enumeration means for creating a list of destination candidates by sorting in order or in ascending order;
A route guidance system comprising: The information providing apparatus further includes:
Facility classification time stamp extracting means for extracting the facility classification corresponding to the designated facility and the time stamp of the information of the area to which the facility belongs, from the facility classification storage means;
Facility information time stamp extracting means for extracting a time stamp of numerical information corresponding to the designated facility from the facility information storage means;
With
The route guidance terminal device further includes:
For the facility that was the destination in the past, the terminal-side facility classification storage means that stores the classification of the facility corresponding to the facility and the information of the area to which the facility belongs,
For the facility that was the destination in the past, terminal-side facility information storage means that stores numerical information that dynamically changes,
With
The terminal-side facility information enumeration unit is configured to store the terminal-side facility classification storage based on a time stamp acquired from the terminal-side facility classification storage unit and the facility classification storage unit for the classification and area of the facility of the designated destination. The relevant facility is extracted from the means or the facility classification storage means, and the numerical information on the extracted facility is stored in the terminal-side facility information storage based on the time stamp acquired from the terminal-side facility information storage means and the facility information storage means Or from the facility information storage means, to create a list of destination candidates by rearranging the extracted facilities and combinations of numerical information in the order of numerical information from the largest or smallest
The route guidance system according to claim 1. The information providing apparatus further includes:
A map information time stamp extracting means for extracting a time stamp of designated map information from the map information storing means;
With
The route guidance terminal device further includes:
Terminal-side map information storage means for storing map information including information about the map image and the area and facility included in the area of each map image for the facility as the destination in the past;
When a route to the destination is set, based on the time stamp acquired from the terminal-side map information storage means and the map information storage means, the terminal-side map information storage means or the map information storage means Map information extraction means for extracting map information on the route to the route,
The route guidance system according to claim 2, further comprising: A route guidance system comprising an information providing device and a route guidance terminal device connected to the information providing device via a network,
The information providing apparatus includes:
Map information storage means for storing map information including map images and information on areas and facilities included in the areas of the map images;
Facility classification storage means for storing the facility classification corresponding to the facility included in the map image stored in the map information storage means and the information of the area to which the facility belongs;
Facility information storage means for storing numerical information that dynamically changes for facilities included in the map image stored in the map information storage means;
Facility information update means for updating or adding the numerical information stored in the facility information storage means based on information of the notified facility at the destination,
For the classification and area of the facility at the designated destination, the relevant facility is extracted from the facility classification storage means, numerical information about the extracted facility is extracted from the facility information storage means, and the combination of the extracted facility and numerical information A list of destination information by rearranging the numerical information in descending order of numerical information, creating a list of destination candidates, and transmitting facility information listing means to the route guidance terminal device;
With
The route guidance terminal device
Terminal-side facility information updating means for notifying the facility information updating means of the information providing device of information on the destination facility;
Specify the facility classification and area information of the destination facility to the facility information enumeration means of the information providing device, and obtain terminal destination facility information enumeration means from the facility information enumeration means,
A route guidance system comprising: The information providing apparatus in a route guidance system comprising: an information providing apparatus; and a route guidance terminal apparatus connected to the information providing apparatus via a network,
Map information storage means for storing map information including map images and information on areas and facilities included in the areas of the map images;
Facility classification storage means for storing the facility classification corresponding to the facility included in the map image stored in the map information storage means and the information of the area to which the facility belongs;
Facility information storage means for storing numerical information that dynamically changes for facilities included in the map image stored in the map information storage means;
Facility information update means for updating or adding the numerical information stored in the facility information storage means based on information of the notified facility at the destination,
For the classification and area of the facility at the designated destination, the relevant facility is extracted from the facility classification storage means, numerical information about the extracted facility is extracted from the facility information storage means, and the combination of the extracted facility and numerical information Facility information listing means for transmitting to the route guidance terminal device as destination candidate information,
An information providing apparatus comprising: The route guidance terminal device further includes:
For the facility that was the destination in the past, the terminal-side facility classification storage means that stores the classification of the facility corresponding to the facility and the information of the area to which the facility belongs,
For the facility that was the destination in the past, terminal-side facility information storage means that stores numerical information that dynamically changes,
If you have
further,
Facility classification time stamp extracting means for extracting the facility classification corresponding to the designated facility and the time stamp of the information of the area to which the facility belongs, from the facility classification storage means;
Facility information time stamp extracting means for extracting a time stamp of numerical information corresponding to the designated facility from the facility information storage means;
The information providing apparatus according to claim 5, further comprising: The route guidance terminal device further includes:
Terminal-side map information storage means for storing map information including information about the map image and the area and facility included in the area of each map image for the facility as the destination in the past;
When a route to the destination is set, based on the time stamp acquired from the terminal-side map information storage means and the map information storage means, the terminal-side map information storage means or the map information storage means Map information extraction means for extracting map information on the route to the route,
If you have
further,
A map information time stamp extracting means for extracting a time stamp of designated map information from the map information storing means;
The information providing apparatus according to claim 6, further comprising: The information providing apparatus in a route guidance system comprising: an information providing apparatus; and a route guidance terminal apparatus connected to the information providing apparatus via a network,
Map information storage means for storing map information including map images and information on areas and facilities included in the areas of the map images;
Facility classification storage means for storing the facility classification corresponding to the facility included in the map image stored in the map information storage means and the information of the area to which the facility belongs;
Facility information storage means for storing numerical information that dynamically changes for facilities included in the map image stored in the map information storage means;
Facility information update means for updating or adding the numerical information stored in the facility information storage means based on information of the notified facility at the destination,
For the classification and area of the facility at the designated destination, the relevant facility is extracted from the facility classification storage means, numerical information about the extracted facility is extracted from the facility information storage means, and the combination of the extracted facility and numerical information A list of destination information by rearranging the numerical information in descending order of numerical information, creating a list of destination candidates, and transmitting facility information listing means to the route guidance terminal device;
An information providing apparatus comprising: The route guidance terminal device in a route guidance system comprising an information providing device and a route guidance terminal device connected to the information providing device via a network,
The information providing device is
Map information storage means for storing map information including map images and information on areas and facilities included in the areas of the map images;
Facility classification storage means for storing the facility classification corresponding to the facility included in the map image stored in the map information storage means and the information of the area to which the facility belongs;
Facility information storage means for storing numerical information that dynamically changes for facilities included in the map image stored in the map information storage means;
Facility information update means for updating or adding the numerical information stored in the facility information storage means based on information of the notified facility at the destination,
For the classification and area of the facility at the designated destination, the relevant facility is extracted from the facility classification storage means, numerical information about the extracted facility is extracted from the facility information storage means, and the combination of the extracted facility and numerical information Facility information listing means for transmitting to the route guidance terminal device as destination candidate information,
If you have
Terminal-side facility information updating means for notifying the facility information updating means of the information providing device of information on the destination facility;
The facility information enumeration means of the information providing device specifies the area of the departure place and the facility of the destination and information on the area, and information on the candidate destination acquired from the facility information enumeration means is stored in the numerical information Terminal-side facility information enumeration means for creating a list of destination candidates by sorting in descending order from large to small,
A route guidance terminal device comprising: The information providing device further includes:
Facility classification time stamp extracting means for extracting the facility classification corresponding to the designated facility and the time stamp of the information of the area to which the facility belongs, from the facility classification storage means;
Facility information time stamp extracting means for extracting a time stamp of numerical information corresponding to the designated facility from the facility information storage means;
If you have
further,
For the facility that was the destination in the past, the terminal-side facility classification storage means that stores the classification of the facility corresponding to the facility and the information of the area to which the facility belongs,
For the facility that was the destination in the past, terminal-side facility information storage means that stores numerical information that dynamically changes,
With
The terminal-side facility information enumeration unit is configured to store the terminal-side facility classification storage based on a time stamp acquired from the terminal-side facility classification storage unit and the facility classification storage unit for the classification and area of the facility of the designated destination. The relevant facility is extracted from the means or the facility classification storage means, and the numerical information on the extracted facility is stored in the terminal-side facility information storage based on the time stamp acquired from the terminal-side facility information storage means and the facility information storage means Or from the facility information storage means, to create a list of destination candidates by rearranging the extracted facilities and combinations of numerical information in the order of numerical information from the largest or smallest
The route guidance terminal device according to claim 9. The information providing device further includes:
A map information time stamp extracting means for extracting a time stamp of designated map information from the map information storing means;
If you have
further,
Terminal-side map information storage means for storing map information including information about the map image and the area and facility included in the area of each map image for the facility as the destination in the past;
When a route to the destination is set, based on the time stamp acquired from the terminal-side map information storage means and the map information storage means, the terminal-side map information storage means or the map information storage means Map information extraction means for extracting map information on the route to the route,
The route guidance terminal device according to claim 10, comprising: The route guidance terminal device in a route guidance system comprising an information providing device and a route guidance terminal device connected to the information providing device via a network,
The information providing device is
Map information storage means for storing map information including map images and information on areas and facilities included in the areas of the map images;
Facility classification storage means for storing the facility classification corresponding to the facility included in the map image stored in the map information storage means and the information of the area to which the facility belongs;
Facility information storage means for storing numerical information that dynamically changes for facilities included in the map image stored in the map information storage means;
Facility information update means for updating or adding the numerical information stored in the facility information storage means based on information of the notified facility at the destination,
For the classification and area of the facility at the designated destination, the relevant facility is extracted from the facility classification storage means, numerical information about the extracted facility is extracted from the facility information storage means, and the combination of the extracted facility and numerical information A list of destination information by rearranging the numerical information in descending order of numerical information, creating a list of destination candidates, and transmitting facility information listing means to the route guidance terminal device;
If you have
Terminal-side facility information updating means for notifying the facility information updating means of the information providing device of information on the destination facility;
Specify the facility classification and area information of the destination facility to the facility information enumeration means of the information providing device, and obtain terminal destination facility information enumeration means from the facility information enumeration means,
A route guidance terminal device comprising: A route guidance method in a route guidance system comprising an information providing device and a route guidance terminal device connected to the information providing device via a network,
The information providing device is
Map information storage means for storing map information including map images and information on areas and facilities included in the areas of the map images;
Facility classification storage means for storing the facility classification corresponding to the facility included in the map image stored in the map information storage means and the information of the area to which the facility belongs;
Facility information storage means for storing numerical information that dynamically changes for facilities included in the map image stored in the map information storage means;
If you have
A destination designation step in which the route guidance terminal device designates the facility classification and area information of the destination to the information providing device;
A facility extraction step in which the information providing device extracts a corresponding facility from the facility classification storage means;
A numerical information extraction step in which the information providing device extracts numerical information related to the extracted facility from the facility information storage means;
A destination candidate transmission step in which the information providing device transmits a combination of the extracted facility and numerical information to the route guidance terminal device as destination candidate information;
A destination candidate list creation step in which the route guidance terminal device creates a list of destination candidates by rearranging the acquired destination candidate information in order of increasing or decreasing numerical value information; and
A route guidance method comprising: A route guidance method in a route guidance system comprising an information providing device and a route guidance terminal device connected to the information providing device via a network,
The information providing device is
Map information storage means for storing map information including map images and information on areas and facilities included in the areas of the map images;
Facility classification storage means for storing the facility classification corresponding to the facility included in the map image stored in the map information storage means and the information of the area to which the facility belongs;
Facility information storage means for storing numerical information that dynamically changes for facilities included in the map image stored in the map information storage means;
With
The route guidance terminal device
For the facility searched as the destination in the past, the facility classification storage means for storing the facility classification corresponding to the facility and the information of the area to which the facility belongs,
For the facility searched as a destination in the past, terminal-side facility information storage means for storing dynamically changing numerical information,
If you have
The route guidance terminal device stores the terminal-side facility classification storage on the basis of the time stamp acquired from the terminal-side facility classification storage means and the facility classification storage means for the facility classification and area information of the designated destination. A facility extraction step of extracting a corresponding facility from the means or the facility classification storage means;
Based on the time stamp acquired by the route guidance terminal device from the terminal-side facility information storage unit and the facility information storage unit, numerical information regarding the extracted facility is obtained from the terminal-side facility information storage unit or the facility information storage unit. A numerical information extraction step to extract;
The route guidance terminal device creates a list of candidate destinations by rearranging combinations of extracted facilities and numerical information in descending order of numerical information, or creating a list of candidate candidates; and
A route guidance method comprising: A route guidance method in a route guidance system comprising an information providing device and a route guidance terminal device connected to the information providing device via a network,
The information providing device is
Map information storage means for storing map information including map images and information on areas and facilities included in the areas of the map images;
Facility classification storage means for storing the facility classification corresponding to the facility included in the map image stored in the map information storage means and the information of the area to which the facility belongs;
Facility information storage means for storing numerical information that dynamically changes for facilities included in the map image stored in the map information storage means;
If you have
A destination designation step in which the route guidance terminal device designates the facility classification and area information of the destination to the information providing device;
A facility extraction step in which the information providing device extracts a corresponding facility from the facility classification storage means;
A numerical information extraction step in which the information providing device extracts numerical information related to the extracted facility from the facility information storage means;
The information providing apparatus creates a destination candidate list by rearranging combinations of extracted facilities and numerical information in order of numerical information from large to small, and creating a destination candidate list; and
A destination candidate list transmission step in which the information providing device transmits the destination candidate list to the route guidance terminal device;
A route guidance method comprising:

Images