JP2012181163A - Route guiding device, method and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily obtain a current position on a route using a prescribed line such as a railroad.SOLUTION: A portable type route guiding device 1 to perform routing assistance comprises: a GPS processing section 111 which detects latitudes and longitudes 1015 of a boarding station, a way station, and an exit station which are any of a plurality of access points, a line ID 1051 of a line used in a route, and a current position of the route guiding device 1; a vehicle position determination section 121 which extracts two stations closest to the current position among the boarding station, the way station, and the exit station based on the latitudes and longitudes 1015 of the boarding station, the way station, and the exit station, and positional information on the current position of the route guiding device 1 detected by the GPS processing section 111; and means to display a current position display screen which includes indications corresponding to the two stations extracted by the vehicle position determination section 121 as well as the current position display showing the current position of the route guiding device 1 between the indications corresponding to the two stations.

Description

  The present invention relates to a technique for performing route guidance of a moving route using a predetermined route such as a railroad.

  2. Description of the Related Art A transfer search system that searches a travel route on a railway by specifying a boarding station and a stop station has become widespread. In the transfer search system, when a user designates a boarding station and a getting-off station, a route and a train used to move from the boarding station to the getting-off station are specified using timetable data. Furthermore, when a transfer search is performed using a mobile phone or the like, there is a technique for sounding an alarm to notify the user when the train approaches the getting-off station.

  Here, in the case of the above-described technique for sounding an alarm based on the scheduled arrival time and the current time of the train, when the train is delayed, the alarm is sounded just before the station, which is useless. Therefore, Patent Document 1 describes that the current position of the train is detected, the delay time of the train is calculated based on the detected position, and an alarm is sounded in anticipation of a more accurate arrival time.

JP 2010-231303 A

  By the way, in the transfer search system as described above, the user needs to specify the boarding station and the getting-off station by text input or the like.

  Further, the transfer search system of Patent Document 1 can know when it gets close to the getting-off station, but cannot know where it is on the set route until then. This is the same when the train is operating according to the timetable and when it is delayed.

  Accordingly, an object of the present invention is to easily grasp the current position on a route using a predetermined route such as a railway.

  Another object of the present invention is to make it possible to easily select a starting point when performing a route search using a predetermined route such as a railway.

  The route guidance apparatus according to one embodiment of the present invention is a predetermined route, and moves through the route that can enter or leave the route from a plurality of predetermined access points. In order to do so, a portable route guidance device that performs route guidance in the route, which is one of the plurality of access points, a starting point of the route, a waypoint included in the route, and the route Stored in the route data storage means, the route data storage means for storing the position information indicating the position of the arrival point, the route identification information used for the route, the detection means for detecting the current position of the route guidance device, and the route data storage means Based on the position information of the starting point, the waypoint in the middle of the route, and the position information of the arrival point, and the position information of the current position of the route guidance device detected by the detecting means. A first extraction means for extracting two points closest to the current position among the points, the waypoints on the way, and the arrival point; a display corresponding to the two points extracted by the first extraction means; First display means for displaying a current position display screen including a current position display indicating a current position of the route guidance device between displays corresponding to two points.

  In a preferred embodiment, a route search request including the departure point and the arrival point is received, a route including the departure point, the intermediate waypoint and the arrival point is searched, and a search result is stored in the route data storage unit. And a second display means for displaying a search result screen including the departure point, the arrival point, and a route used in the route, with reference to the route data storage means as a response to the search request. And may be further provided. And the said 1st display means will display the said present position display screen, if predetermined | prescribed operation with respect to the said search result screen is received.

  In a preferred embodiment, a first distance that is a distance between a first point that is one of the two points extracted by the extraction means and a current position of the route guidance device, and 2 that is extracted by the extraction means. A calculating means for calculating a ratio between a second point that is the other of the points and a second distance that is a distance between the current position of the route guidance device and the first display means; The current position display is displayed at a position where the distance between the first point and the second point is divided by the ratio between the first distance and the second distance calculated by the calculating means. 3. The route guidance device according to 2.

  In a preferred embodiment, the distance between the arrival point and the current position of the route guidance device from the position information of the arrival point and the current position information of the route guidance device stored in the route data storage means. And a notification means for notifying the approach to the arrival point when the distance between the arrival point and the current position of the route guidance device is equal to or less than a predetermined distance.

  In a preferred embodiment, image data storage means for storing route map image data, access point data storage means for storing position information of the plurality of access points and position coordinates in the route map, and the access point data storage Referring to the means, the second extraction means for extracting the access point closest to the current position of the route guidance device detected by the detection means, and the second extraction means with reference to the access point data storage means Specifying means for specifying the position coordinates in the route map of the nearest access point extracted by the means, position coordinates in the route map of the nearest access point specified by the specifying means, and image data of the route map So that the nearest access point is in the center of the display device A third display means for displaying the diagram, it may further comprise a. And the said search means performs a route search based on the said boarding station and alighting station designated in the route map displayed by the said 3rd display means.

  In a preferred embodiment, the third display means may display the nearest access point in a display mode different from other access points.

  In a preferred embodiment, the current position display screen displayed by the first display means includes the names of the two points extracted by the first extraction means, the starting point, the waypoint in the middle, and the arrival point. A list of a plurality of names of points may be included.

  In a preferred embodiment, the current position display screen displayed by the first display means is the current position in a route map including a plurality of access points among the starting point, the intermediate waypoint, and the arrival point. An indication may be included.

1 is an overall configuration diagram of a route guidance device 1 according to an embodiment of the present invention. The figure which shows an example of the attribute data 1010 memorize | stored in the route map attribute data memory | storage part 101. FIG. The figure which shows an example of the station selection screen 510 in case the nearest station is Tokyo station. The figure which shows an example of the search request production | generation screen 520. FIG. The figure which shows an example of the route data 1050 memorize | stored in the route data storage part 105. FIG. The figure which shows an example of the route display screen 530. FIG. The figure which shows the specific example of a vehicle position determination process. The figure which shows an example of the stop station display screen 540. FIG. The figure which shows an example of the vehicle position display screen 550. FIG. The figure which shows an example of the vehicle position display screen 550. FIG. The flowchart which shows the procedure of the process which the route guidance apparatus 1 performs.

  Hereinafter, a route guidance device 1 according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram illustrating an overall configuration of a route guidance device 1 according to the present embodiment.

  The route guidance device 1 is constituted by, for example, a portable computer that can be carried by a user and may have a communication function, and may be, for example, a mobile phone, a portable information terminal, or a so-called smart phone.

  The route guidance apparatus 1 according to the present embodiment is for moving from a departure point to an arrival point using a route that can be accessed only from a predetermined point (access point) for entering and exiting (access) the route, for example. Provides route guidance for The target route is a route such as a railroad or an expressway, for example. In other words, the route guidance apparatus 1 according to the present invention provides a route guide by railroad from a boarding station to a stop station in the case of a railroad route, and provides access to the interchange in the case of a highway route. It is a point and provides route guidance on the expressway from the interchange on the expressway to the exit. In the following embodiments, the route guidance of the railway will be mainly described. However, the present invention can be applied to the route guidance of the expressway by making the railway station correspond to the interchange of the expressway.

  The route guidance device 1 includes a display device 3 such as a liquid crystal panel, a speaker 4 that outputs voice or music, and an input device 5 such as a push button, a pointing device, or a touch panel.

  When a predetermined computer program is executed using a processor and a memory (not shown) of a computer that constitutes the route guidance device 1, each function or configuration described below is realized.

  The route guidance device 1 according to the present embodiment includes a GPS (Global Positioning System) processing unit 111, a station selection screen display processing unit 113, a route search request generation unit 115, a route search engine 117, and a route display processing unit 119. A vehicle position determination unit 121, a stop station display processing unit 123, a vehicle position display processing unit 125, an arrival notification unit 127, a route map attribute data storage unit 101, a route map image data storage unit 103, and route data A storage unit 105 and an operation schedule data storage unit 107 are provided.

  The GPS processing unit 111 is a current position detection unit that detects a current position of the route guidance device 1 based on a GPS signal received by a GPS antenna (not shown) provided in the route guidance device 1. This current position is specified by latitude and longitude, for example. The GPS processing unit 111 measures the current position at a predetermined timing such as when receiving an instruction from a user at a predetermined time interval. In the present embodiment, the current position is specified using GPS, but other than this, for example, radio waves transmitted from a base station of a mobile phone, radio waves transmitted from a base station of a wireless LAN, etc. May be used to identify the current position.

  In the route map attribute data storage unit 101, attribute data such as position information of each station in the route map is recorded in advance. For example, FIG. 2 shows an example of attribute data 1010 stored in the route map attribute data storage unit 101. That is, the attribute data 1010 includes a station code 1011, a station name 1012, a route map 1013, a position coordinate 1014, and a latitude / longitude 1015 as data items. The route map 1013 is a route map in which stations related to the station code 1011 and the station name 1012 are posted. The route map 1013 includes, for example, route maps by region such as a route map near Tokyo and a route map near Osaka. The position coordinate 1014 is a coordinate indicating a position where the station related to the station code 1011 and the station name 1012 exists on the route map of the route map 1013. The latitude / longitude 1015 is the latitude and longitude of the station according to the station code 1011 and the station name 1012.

  Returning to FIG. 1, the route map image data storage unit 103 stores route map image data in advance. The route map may be classified by region, for example, a route map near Tokyo or a route map near Osaka. Furthermore, in the same area, the route map may be divided according to the type of railway (for example, subway and other railways such as JR and private railways).

  The station selection screen display processing unit 113 causes the display device 3 to display a screen for accepting designation of a boarding station (departure point) and a stop station (arrival point) for route guidance from the user. For example, the station selection screen display processing unit 113 displays a route map, and causes a user to select a boarding station and a stop station by selecting a station in the route map. The station selection screen display processing unit 113 can scroll the route map in accordance with a predetermined operation input from the input device 5. The station selection screen display processing unit 113 may further accept selection of a transit station.

  The station selection screen display processing unit 113 selects a route map image so that the route map displayed on the display device 3 includes a position corresponding to the current position detected by the GPS processing unit 111. For example, the station selection screen display processing unit 113 acquires the current position (latitude and longitude) detected by the GPS processing unit 111, refers to the route map attribute data storage unit 101, and the latitude / longitude 1015 is the most from the current position. Extract the nearest station. The station selection screen display processing unit 113 specifies the route map 1013 of the nearest station, and acquires the image data of this route map 1013 from the route map image data storage unit 103. Further, the station selection screen display processing unit 113 specifies the position coordinate 1014 of the nearest station, and displays a route map so that the position coordinate 1014 is near the center of the display device 3.

  FIG. 3 shows an example of a station selection screen 510 when the nearest station is Tokyo Station. At this time, for example, the station selection screen display processing unit 113 may display the route map so that the position coordinates 1014 of the nearest station come to the intersection of the diagonal lines of the rectangular display area of the display device 3. The station selection screen display processing unit 113 may display the nearest station in a display mode different from other stations. For example, the station name of the nearest station may be displayed in a different color from other stations or blinked. Or you may make it display the image which shows that it is the nearest station on a route map in piles.

  For example, the station selection screen display processing unit 113 may further refer to the attribute data 1010 and further extract nearby stations within a predetermined range from the current position or the nearest station. And the station selection screen display process part 113 may display the nearby station extracted here in the display mode different from another station. The display mode of the nearby station and the nearest station may be the same or different. When the user makes a predetermined input on the station selection screen 510, the screen transitions to a search request generation screen 520 described below.

  Returning to FIG. 1, the route search request generation unit 115 generates a route search request from the boarding station (departure point) to the stop station (arrival point). For example, the route search request generation unit 115 acquires the boarding station (departure point), the getting-off station (arrival point), and the transit station selected on the route map as shown in FIG. 3 from the station selection screen display processing unit 113. Then, the search request generation screen 520 is displayed on the display device 3.

  FIG. 4 shows an example of the search request generation screen 520. In the drawing, departure 521, via 522, and arrival 523 display the names of boarding stations, via stations, and alighting stations selected on the route map, respectively. In the search request generation screen 520, the station names of the departure 521, the route 522, and the arrival 523 can be corrected. On the search request generation screen 520, settings of various conditions (time, display order of search results, etc.) may be accepted. When the route search request generation unit 115 receives a predetermined input from the user, the route search request generation unit 115 generates a route search request including the contents displayed on the search request generation screen 520 and requests the route search engine 117 to perform a search.

  Returning to FIG. 1, railway schedule data storage unit 107 stores railway schedule data in advance.

  The route search engine 117 performs a route search from the boarding station (departure point) to the stop station (arrival point) in accordance with the search request requested from the route search request generation unit 115. For example, the route search engine 117 accepts a route search request including the boarding station and the getting-off station, and performs a route search from the departure station to the getting-off station with reference to the operation diagram data storage unit 107. If there is a search condition (designation of departure time or arrival time) regarding the transit station and time, the route search engine 117 further performs a search according to this. The route search engine 117 stores the search result data in the route data storage unit 105.

  The route data storage unit 105 stores data indicating the route from the boarding station to the getting-off station searched by the route search engine 117. When a plurality of routes are searched by the route search engine 117, route data is stored for each route.

  FIG. 5 shows an example of route data 1050 stored in the route data storage unit 105. As shown in the figure, the route data 1050 has a route ID 1051, a train type 1052, a station code 1053, a station name 1054, and a time 1055 as data items.

  The route ID 1051 is identification information of a train route used in the searched route.

  The train type 1052 is identification information of the type of train such as limited express, high speed, and ordinary.

  The station code 1053 and the station name 1054 are a station code and a station name of a station included in the route. Here, the stations included in the route include not only the boarding station and the getting-off station but also a stop station in the middle (a waypoint on the way). The stop station may include a transit station designated by the user and a transfer station that changes the route.

  Time 1055 is the departure time or arrival time of each station.

  In the present embodiment, the route data 1050 does not include the latitude and longitude of each station included in the route, and is acquired from the attribute data 1010 when necessary. However, the latitude and longitude of each station included in the route may be included in the route data 1050.

  The route display processing unit 119 refers to the route data storage unit 105 and causes the display device 3 to display a route display screen including a departure point, an arrival point, and a route.

  FIG. 6 shows an example of the route display screen 530. A route search result by the route search engine 117 is displayed on the route display screen 530. For example, the route display screen 530 displays the boarding station 531, the transfer station 532, and the getting-off station 533, the route 534 to be used, and the respective times (departure time, arrival time, etc.) 535. When a predetermined operation on the route display screen 530 is received, a transition to a current position display screen (for example, a stop station display screen 540 (see FIG. 8) or a vehicle position display screen 550 (see FIG. 10)) may be made.

  Returning to FIG. 1, the vehicle position determination unit 121 determines the position of the vehicle on which the user carrying the route guidance device 1 is on the basis of the current position of the route guidance device 1. And the vehicle position determination part 121 is based on the positional information on the departure point (boarding station), the waypoint (stop station) on the way, and the arrival point (getting off station), and the positional information on the current position of the route guidance device 1. The two points closest to the current position are extracted from the departure point (boarding station), the waypoint (stop station) and the arrival point (stop station).

  For example, the vehicle position determination unit 121 acquires current position data from the GPS processing unit 111. When the GPS processing unit 111 regularly extracts the current position, the vehicle position determination unit 121 acquires the current position data every time the GPS processing unit 111 extracts the current position. The vehicle position determination unit 121 may perform the following process each time the current position data is acquired.

  The vehicle position determination unit 121 refers to the route data storage unit 105 and identifies all station codes 1053 included in the extracted route. And the vehicle position determination part 121 acquires the latitude longitude 1015 of the station of the station code 1053 extracted here with reference to the route map attribute data memory | storage part 101, and the present position data acquired from the GPS process part 111, and In comparison, two stations closest to the current position are extracted.

  FIG. 7 shows a specific example of the vehicle position determination process. First, the vehicle position determination unit 121 specifies the latitude and longitude of the stop station included in the route. For example, in the example of FIG. 7, the latitudes and longitudes of Suidobashi, Iidabashi, Ichigaya, Yotsuya, and Shinanomachi are (E1, N1), (E2, N2), (E3, N3), (E4, N4), ( E5, N5). At this time, when the latitude and longitude of the current position are (Ex, Nx), the vehicle position determination unit 121 uses each latitude and longitude and the latitude and longitude of the current position to determine the distance between the current position and each station. calculate. And the two stations (Ichigaya Station and Yotsuya Station in the case of the figure) with the closest distance are specified.

  The vehicle position determination unit 121 further determines a detailed position between the nearest two stations. For example, it is determined how much the current position is advanced by the distance between the two stations. The vehicle position determination unit 121 is, for example, the distance between the first point (station) which is one of the nearest two points (station) (station) and the current position of the route guidance device 1 (current position of the vehicle). 1st distance, 2nd distance which is the distance of the 2nd point (station) which is the other point (station) of the nearest 2 points (station), and the present position (current position of a vehicle) of the route guidance apparatus 1 Is calculated. Then, the vehicle position determination unit 121 calculates a ratio between the first distance and the second distance. The current position of the vehicle is considered to be the point where the distance between the nearest two stations is divided by the ratio of this distance. In the case of the figure, if the distance between Ichigaya Station and the current position is D1, and the distance between the current position and Yotsuya Station is D2, the vehicle position determination unit 121 calculates a ratio of D1: D2. The vehicle position determination unit 121 may replace the actual distance ratio obtained as described above with an approximate ratio. In this case, the ratio calculated from the actual distance is not an integer ratio in most cases. For example, the ratio is replaced with a simple integer ratio.

  The vehicle position determination unit 121 notifies the stop station display processing unit 123 and the vehicle position display processing unit 125 of the ratio between the nearest two stations and the distance from the current position to the nearest two stations.

  When the route search engine 117 extracts a plurality of routes, the vehicle position determination unit 121 performs the above processing for any one route that is automatically selected based on the current location or a route that is designated in advance by the user. May be performed.

  The stop station display processing unit 123 and the vehicle position display processing unit 125 display corresponding to the nearest two points (stations) from the current position extracted by the vehicle position determination unit 121 and display corresponding to the two points (stations). A current position display screen including a current position display indicating the current position is displayed. Here, the stop station display processing unit 123 displays the current position display screen as a stop station list, and the vehicle position display processing unit 125 displays the current position display screen as a route map. The stop station display processing unit 123 and the vehicle position display processing unit 125 may update the current position display screen every time a notification is received from the vehicle position determination unit 121.

  The stop station display processing unit 123 acquires the station codes of the nearest two stations from the vehicle position determination unit 121 and acquires the route data 1050 from the route data storage unit 105. The stop station display processing unit 123 causes the display device 3 to display a stop station display screen 540 that displays a list of station names of a plurality of stations including the nearest two stations based on the route data 1050.

  FIG. 8 shows an example of the stop station display screen 540. For example, the stop station display screen 540 displays a list in which the stop stations are arranged at the top and the stop stations are located at the bottom, and the stop stations are arranged between the boarding station and the stop station. When all the stations cannot be displayed, the stop station list may be scrollable up and down. At this time, a predetermined current position display (for example, a train icon) 541 indicating the current position is displayed between the nearest two stations 542 and 543 in the column direction (vertical direction) of the list.

  The stop station display processing unit 123 further displays the detailed position of the current position display 541 displayed between the two nearest stations according to the ratio of the distance from the current position to the nearest two stations notified from the vehicle position determination unit 121. It may be determined. That is, the stop station display processing unit 123 may display the current position display 541 at a point where the distance between the nearest two stations in the list is apportioned by the notified ratio.

  The vehicle position display processing unit 125 acquires the station codes of the nearest two stations from the vehicle position determination unit 121, attribute data 1010 from the route map attribute data storage unit 101, and route data 1050 from the route data storage unit 105. Further, the vehicle position display processing unit 125 acquires route map image data from the route map image data storage unit 103. Then, the vehicle position display processing unit 125 causes the display device 3 to display a route map display screen including a plurality of stations of the boarding station, the stop station on the way, and the getting-off station based on the acquired data. For example, the vehicle position determination unit 121 identifies a route map 1013 and position coordinates 1014 from the station codes of the nearest two stations, and displays a route map display screen including the nearest two stations. At this time, a predetermined current position is displayed between the nearest two stations in the displayed route map.

  The vehicle position display processing unit 125 further displays the current position display position between the two nearest stations in the route map based on the ratio of the distance from the current position to the nearest two stations notified from the vehicle position determination unit 121. May be determined. Here, the route map is a deformed map that does not necessarily accurately reflect the positional relationship on the actual map. A detailed processing procedure for determining a display position for displaying the current position on the deformed map will be described.

  FIG. 9A shows the positional relationship between the nearest two stations S1 and S2 and the current position P on an actual map. Here, the vehicle position display processing unit 125 can grasp the latitude and longitude 1015 of the nearest two stations S1 and S2 and the latitude and longitude of the current position P. The vehicle position display processing unit 125 uses the latitude and longitude to calculate the ratio of the distance from the current position to the nearest two stations in the east-west direction and the north-south direction. In the example of the figure, in the east-west direction, the ratio of the distance between S1 and P and the distance between P and S2 is 80% and 20%. Furthermore, in the north-south direction, the ratio of the distance between S1 and P and the distance between P and S2 is 25% and 75%. The above-mentioned ratio calculated by the vehicle position display processing unit 125 is not necessarily the ratio between the east-west direction and the north-south direction, but is a ratio in the coordinate axis direction (predetermined two-axis direction) of any orthogonal coordinate system on the map plane. Good. In addition, the following process will become easy if this orthogonal coordinate system is an orthogonal coordinate system which corresponds to the XY direction of a route map.

  FIG. 9B shows an example of the current position display in the route map. First, the vehicle position display processing unit 125 grasps the position coordinates 1014 of the nearest two stations S1 and S2 on the route map. Here, since the X-axis direction of the route map coincides with the east-west direction and the Y-axis direction coincides with the north-south direction, the vehicle position display processing unit 125 determines the ratio of the east-west direction and the north-south direction as described above. Applying each in the axial direction, the display position of the current position display G is determined between S1 and S2 on the route map.

  FIG. 10 shows an example of a vehicle position display screen 550 performed by the vehicle position display processing unit 125. In this example, the vehicle position display screen 550 and the stop station display screen 540 are displayed side by side, but the vehicle position display screen 550 may be displayed on the display device 3 alone.

  The vehicle position display processing unit 125 acquires image data of a route map including the nearest two stations from the route map image data storage unit 103 and causes the display device 3 to display the route map. Then, the current position display G is displayed at the current position on the route map determined as described above. Further, the vehicle position display processing unit 125 may make the display mode of the boarding station, the stop station, and the getting-off station different from other stations on the vehicle position display screen 550. For example, a boarding station, a stop station, and a stop station may be displayed in a different color from other stations. The display mode of the stop station may be different from the display mode of the boarding station and the getting-off station.

  Returning to FIG. 1, the arrival notifying unit 127 notifies the user when the current position of the route guidance device 1 approaches the arrival point (get-off station). For example, the arrival notification unit 127 acquires the current position data detected by the GPS processing unit 111. The arrival notification unit 127 refers to the route data storage unit 105 and identifies the latitude / longitude 1015 of the getting-off station. The arrival notification unit 127 calculates the distance between the getting-off station and the current position from the latitude and longitude of the current position and the latitude and longitude 1015 of the getting-off station. Inform. In order to notify the user of the approach to the getting-off station, for example, voice or music may be output from the speaker 4 or a predetermined message may be displayed on the display device 3. The arrival notification unit 127 may notify the user in the same manner in front of the transfer station, in addition to the getting-off station. The voice, music, or message that is output in front of the transfer station may be different from that output in front of the stop station.

  Next, a procedure of processing performed by the route guidance device 1 having the above configuration will be described with reference to a flowchart of FIG.

  When the route guidance device 1 is activated, the route map attribute data storage unit 101, the route map image data storage unit 103, and the operation diagram data storage unit 107 are each stored as initialization processing. May be.

  First, the GPS processing unit 111 detects the current position of the route guidance device 1 (S11).

  Next, the station selection screen display processing unit 113 refers to the route map attribute data storage unit 101 and extracts the nearest station of the current position (S13). Further, the station selection screen display processing unit 113 refers to the route map attribute data storage unit 101, and specifies the route map in which the nearest station is described and the position coordinates of the nearest station in the route map (S15). Then, the station selection screen display processing unit 113 acquires the image data of the route map specified in step S15 from the route map image data storage unit 103, and the position coordinate of the nearest station specified in step S15 is the display area of the display device 3. The station selection screen 510 (see FIG. 3) is displayed so as to be in the center of (S17).

  The user designates the boarding station and the getting-off station on the station selection screen 510 by selecting a station in the route map. When a transit station is designated, a transit station can also be designated.

  When the station selection screen display processing unit 113 notifies the route search request generation unit 115 of the boarding station, transit station, and alighting station specified on the station selection screen 510, the route search request generation unit 115 sends a search request to the display device 3. The generation screen 520 (see FIG. 4) is displayed (S19).

  The user can input various conditions regarding route search on the search request generation screen 520. When receiving a search instruction input to the search request generation screen 520, the route search request generation unit 115 generates a route search request. The route search engine 117 receives the route search request from the route search request generation unit 115 and executes a search (S21). Route data 1050 that is a search result by the route search engine 117 is stored in the route data storage unit 105.

  The route display processing unit 119 displays the route display screen 530 (see FIG. 6) on the display device 3 based on the route data 1050 in the route data storage unit 105 (S23). Thereby, the user can know the result of the route search.

  Next, after getting on the train to travel on the searched route, when a predetermined input to the route display screen 530, for example, a selection input of the route 534, is received, the vehicle position determination unit 121 is within the selected route. The position of the vehicle on which the user is riding is determined (S25). That is, by the processing of the vehicle position determination unit 121, it is possible to grasp which station the vehicle on which the user carrying the route guidance device 1 is traveling is traveling.

  Then, the stop station display processing unit 123 or the vehicle position display processing unit 125 causes the stop station display screen 540 (see FIG. 8) or / and the vehicle position display screen 550 (see FIG. 10) to be displayed on the display device 3, and the current position Display is performed (S27).

  Thereby, the user can grasp | ascertain visually and easily where the train which he / she is currently traveling is running.

  The above-described embodiments of the present invention are examples for explaining the present invention, and are not intended to limit the scope of the present invention only to those embodiments. Those skilled in the art can implement the present invention in various other modes without departing from the gist of the present invention.

  For example, when applied to an expressway route search, a waypoint (a stop station in the case of a railroad) on the way may include a parking area and a service area in addition to an interchange on the way.

1 Route Guidance Device 3 Display Device 101 Route Map Attribute Data Storage Unit 103 Route Map Image Data Storage Unit 105 Route Data Storage Unit 111 GPS Processing Unit 113 Station Selection Screen Display Processing Unit 115 Route Search Request Generation Unit 117 Route Search Engine 119 Route Display Processing unit 121 Vehicle position determination unit 123 Stop station display processing unit 125 Vehicle position display processing unit 127 Arrival notification unit 510 Station selection screen 520 Search request generation screen 530 Route display screen 540 Stop station display screen 550 Vehicle position display screen

Claims (10)

It is possible to provide route guidance within the route in order to travel through the route that can enter or exit the route from a plurality of predetermined access points. A portable route guidance device,
Stores location information indicating the starting point of the route, the intermediate point included in the route, and the location of the arrival point of the route, which is one of the plurality of access points, and identification information of the route used in the route Route data storage means,
Detecting means for detecting a current position of the route guidance device;
Based on the position information of the starting point, the waypoint on the way and the arrival point stored in the route data storage means, and the position information of the current position of the route guidance device detected by the detection means, A first extraction means for extracting two points closest to the current position among a starting point, the intermediate waypoint, and the arrival point;
A current position display screen including a display corresponding to the two points extracted by the first extraction means and a current position display indicating the current position of the route guidance device between the displays corresponding to the two points is displayed. A route guidance device comprising: A search unit that receives a route search request including the departure point and the arrival point, searches for a route including the departure point, the intermediate waypoint, and the arrival point, and stores a search result in the route data storage unit; ,
As a response to the search request, referring to the route data storage means, and further comprising a second display means for displaying a search result screen including the departure point, the arrival point, and a route used in the route,
The route guidance device according to claim 1, wherein the first display unit displays the current position display screen when receiving a predetermined operation on the search result screen. A first distance that is one of the two points extracted by the extraction means and a current position of the route guidance device, and the other of the two points extracted by the extraction means. A calculation means for calculating a ratio of a second point that is a distance between a certain second point and the current position of the route guidance device;
The first display means is configured to divide the distance between the first point and the second point by a ratio of the first distance and the second distance calculated by the calculation means at the current position. The route guidance device according to claim 1 or 2, which displays a position display.   The distance between the arrival point and the current position of the route guidance device is calculated from the position information of the arrival point and the current position information of the route guidance device stored in the route data storage means, and the arrival point The route guidance device according to any one of claims 1 to 3, further comprising notifying means for notifying an approach to the arrival point when a distance between a point and the current position of the route guidance device is a predetermined distance or less. Image data storage means for storing image data of the route map;
Access point data storage means for storing position information of the plurality of access points and position coordinates in the route map;
Referring to the access point data storage means, second extraction means for extracting an access point nearest to the current position of the route guidance device detected by the detection means;
Referring to the access point data storage means, specifying means for specifying the position coordinates in the route map of the nearest access point extracted by the second extraction means;
Based on the position coordinates of the nearest access point specified by the specifying means in the route map and the image data of the route map, the route map is displayed so that the nearest access point is at the center of the display device. And a third display means for causing
5. The route guidance device according to claim 2, wherein the search unit performs a route search based on the boarding station and the getting-off station specified in the route map displayed by the third display unit.   The route guidance device according to claim 5, wherein the third display means displays the nearest access point in a display mode different from other access points.   The current position display screen displayed by the first display unit includes a plurality of names of the starting point, the intermediate way point, and the arrival point, including the names of two points extracted by the first extracting unit. The route guidance device according to any one of claims 1 to 6, including a list of names.   The current position display screen displayed by the first display means includes the current position display in a route map including a plurality of access points among the starting point, the intermediate waypoint, and the arrival point. The route guidance apparatus in any one of 1-6. In order to travel through the route that is a predetermined route that can enter or leave the route from a plurality of predetermined access points, a portable route guidance device is provided for the route. A method for performing route guidance in
The route guidance device is
Route information indicating the position of the starting point of the route, the intermediate point included in the route, and the arrival point of the route, which is one of the plurality of access points, and the identification information of the route used in the route Storing in data storage means;
Detecting a current position of the route guidance device;
Based on the position information of the starting point, the intermediate way point and the arrival point stored in the route data storage means, and the detected position information of the current position of the route guidance device, the starting point Extracting the two closest points from the current position among the waypoints in the middle and the arrival point;
Displaying a current position display screen including a display corresponding to the two extracted points and a current position display indicating a current position of the route guidance device between the displays corresponding to the two points. Route guidance method. In order to travel through the route that is a predetermined route that can enter or leave the route from a plurality of predetermined access points, a portable route guidance device is provided for the route. A computer program for performing route guidance in
The route guidance device is
Route information indicating the position of the starting point of the route, the intermediate point included in the route, and the arrival point of the route, which is one of the plurality of access points, and the identification information of the route used in the route Storing in data storage means;
Detecting a current position of the route guidance device;
Based on the position information of the starting point, the intermediate way point and the arrival point stored in the route data storage means, and the detected position information of the current position of the route guidance device, the starting point Extracting the two closest points from the current position among the waypoints in the middle and the arrival point;
Displaying a current position display screen including a display corresponding to the two extracted points and a current position display indicating a current position of the route guidance device between the displays corresponding to the two points. Computer program for.

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