JP6164946B2 - Navigation device, navigation method, navigation information acquisition program, and navigation information provision program - Google Patents

Description

  The present invention relates to an apparatus, a method, and a program capable of performing navigation (road guidance) including a travel route on a train, which is realized by using a mobile terminal such as a high-function mobile phone terminal.

  An information processing apparatus suitable for carrying, such as a high-functional mobile phone terminal called a smartphone or a tablet PC (PC is an abbreviation for personal computer), has come to be widely used. Many of these portable terminals have high functions, and some of them can realize a function as a vehicle-mounted navigation device or a function as a navigation device for pedestrians.

  In Patent Document 1 to be described later, when the current position of the mobile terminal is in the station, the station mode is set. When the current position is in the train, the train mode is set. In other cases, the normal walking mode is set. An invention related to a navigation device to be set is disclosed. In the navigation device realized by the portable terminal disclosed in Patent Document 1, the current position is displayed on the station map in the station premises mode, on the railway map in the train mode, and on the city map in other cases. The position can be guided.

  According to the invention described in Patent Document 1, it is possible to realize a navigation device that performs guidance using a map display according to the situation of the user at that time, and it is possible to improve the convenience of a user who moves on foot.

JP 2011-237357 A

  As described above, in the navigation device of the invention described in Patent Document 1, it is possible to indicate the current position of the navigation device (portable terminal) on the station premises map, on the railway map, or on the city map. You can grasp the route you follow appropriately through your vision. In Patent Document 1, the current position of the mobile terminal is determined by matching the current position of the mobile terminal acquired through the GPS receiver of the mobile terminal with a station premises map, a railway map, or a city map. It is explained that it can be specified by considering However, for example, when moving by train and getting off at the intended disembarkation station, it may not be possible to properly guide which direction to move.

  As is well known, the station platform is long corresponding to the length of the train. For this reason, the direction of moving on the platform may be opposite between the case of going to the east ticket gate (the east exit) and the case of going to the west ticket gate (the west exit). In addition, when a passage such as a stairway to the ticket gate is provided near the center of the platform, the direction in which the user should proceed may be opposite in accordance with the position of getting off on the platform. Generally, the current position measured by a GPS receiver mounted on a navigation device includes a certain amount of error. For this reason, even when it is possible to detect that the destination station has been reached, it is often impossible to accurately specify the position of the user who got off the train on the platform. In the case of a subway platform or a large terminal station covered with a roof, the current position may not be determined by the GPS function.

  If the position of getting off on the user's platform when getting off the train cannot be accurately specified, it is not possible to properly guide the direction to go to the user immediately after getting off the train. Of course, it is also possible for the user himself / herself to specify the moving direction by referring to the station premises map displayed on the display screen of the portable terminal. However, it is difficult for a user who is unfamiliar with a station premises map or the like to specify the direction in which the user should proceed based on the displayed premises map.

  In view of the above, it is an object of the present invention to provide a portable terminal type navigation device that can appropriately guide a moving direction on a platform even to a user immediately after getting off a train.

In order to solve the above problem, the navigation device of the invention according to claim 1 is:
Identification information of each base station in the local area network capable of wireless communication, the area where the transmission signal can be received from each base station, and the reception strength of the transmission signal from each base station for each railway station platform Storage means for storing base station map information associated with
Receiving means for receiving a transmission signal from each base station of the local area network;
Current position positioning means for measuring the current position;
Whether or not the on-board train is running when it is detected that the route is a travel route based on the current position measured by the current position positioning means and the route information obtained as a result of the route search. Detecting means for detecting
An extraction means for extracting the identification information of each base station from the transmission signal of each base station of the local area network received by the receiving means when it is detected that the train boarded through the detecting means has stopped ;
A detecting means for detecting the reception intensity of the transmission signal from each base station of the local area network received by the receiving means when detecting that the train boarded through the detecting means has stopped ;
Based on the identification information of each base station extracted by the extraction means and the reception strength of the transmission signal from each base station detected by the detection means, the base station map information of the storage means is referred to The location is a specific means for identifying which position of which platform of which station,
Wherein said location of its own specified by the specifying means, when it is determined that the destination station or transfer station on the route indicated in the route information, obtained as a result of the location and route search identified And specifying means for specifying and instructing the moving direction on the platform after getting off the train based on the route information.

  Thereby, it is possible to appropriately guide the user who gets off the train in which direction the searched route can be traced. Therefore, it is possible to prevent inconveniences such as making a mistake in transfer or taking a long time to change, or inconvenience caused by making a mistake in the route due to having entered the wrong ticket gate and getting lost.

  According to the present invention, it is a portable terminal type navigation device that can appropriately guide the moving direction on the platform even to a user immediately after getting off the train.

It is a figure for demonstrating the outline | summary of the navigation apparatus of embodiment. It is a block diagram for demonstrating the structural example of the portable terminal 1 which comprises the navigation apparatus of embodiment. It is a figure for demonstrating the example of the notification information produced | generated in the notification information formation part 114 of the portable terminal 1. FIG. It is a block diagram for demonstrating the structural example of the server 3 which comprises the navigation apparatus of embodiment. 4 is a diagram for explaining an example of data stored in an AP (access point) management DB 306 of the server 3. FIG. It is a figure for demonstrating an example of the receivable area of the transmission signal from AP (access point), and an example of a WiFi (trademark) map. 6 is a diagram for explaining an example of data stored in a WiFi map DB 307 of the server 3. FIG. 4 is a flowchart for explaining route search and navigation processing executed in the mobile terminal 1. It is a flowchart following FIG. It is a flowchart following FIG. It is a figure which shows the example of the input screen etc. which are displayed on the display part 109 of the portable terminal. 4 is a flowchart for explaining navigation support processing executed by a server 3. It is a flowchart following FIG. 10 is a flowchart for explaining main parts of another example of route search and navigation processing performed in the mobile terminal 1. 12 is a flowchart for explaining a main part of another example of the navigation support process performed by the server 3.

  Hereinafter, embodiments of the apparatus, method, and program of the present invention will be described with reference to the drawings. The navigation device of the present invention can be configured as a so-called stand-alone device, or can be configured by connecting a server and a mobile terminal through a network. In the following, an example of a navigation device configured by connecting a server and a mobile terminal through a network in order to realize a navigation device that can be used universally by various users without being limited by the place of use. I will explain.

[Outline of navigation device]
FIG. 1 is a diagram for explaining the outline of the navigation device of this embodiment. The navigation device of this embodiment is configured by connecting a large number of portable terminals 1 (1), 1 (2), 1 (3),... And a navigation server device 3 through a network 2.

  Each of the mobile terminals 1 (1), 1 (2), 1 (3),... Is used by being carried by a user. Each of the mobile terminals 1 (1), 1 (2), 1 (3),... Has a communication function and a positioning function of the current position such as a GPS (Global Positioning System) function, which will be described in detail later. Prepare.

  Specifically, the mobile terminals 1 (1), 1 (2), 1 (3),... Are called a conventional mobile phone terminal, a tablet PC (PC is an abbreviation for personal computer), a notebook PC, and a smartphone. It can be realized by various mobile terminals such as a high-function mobile phone terminal. However, in this embodiment, in order to simplify the explanation, each of the mobile terminals 1 (1), 1 (2), 1 (3),... Has a high function called a smartphone that has been widely spread in recent years. A description will be given assuming that the mobile phone terminal is realized.

  The network 2 includes various communication networks that mutually connect a large number of portable terminals 1 (1), 1 (2), 1 (3),... And the navigation server device 3. Specifically, the network 2 connects a communication terminal and the Internet, such as a wide-area communication network (wide-area network) such as the Internet, a mobile phone network, and a public switched telephone network, or a WiFi (registered trademark) wireless LAN, for example. Includes various networks. Note that WiFi is an abbreviation for “Wireless Fidelity” and is a registered trademark of Wi-Fi Alliance.

  The navigation server device (hereinafter simply referred to as a server) 3 cooperates with each of the mobile terminals 1 (1), 1 (2), 1 (3),. In each of 1 (2), 1 (3),..., A navigation function is realized. That is, the server 3 performs a route search in response to a route search request from each of the mobile terminals 1 (1), 1 (2), 1 (3),... ), 1 (2), 1 (3),.

  From each of the mobile terminals 1 (1), 1 (2), 1 (3),..., Notification information (probe information) Pb including the current position is provided at predetermined timings such as 1 minute intervals, for example. Sent to server 3. The server 3 receives the notification information Pb from each of the mobile terminals 1 (1), 1 (2), 1 (3),..., And according to the received notification information Pb, the mobile terminals 1 (1), 1 (2) It is possible to appropriately grasp each current position of 1 (3),. Then, the server 3 provides the guidance information Gd for each of the mobile terminals 1 (1), 1 (2), 1 (3),. The guide information Gd includes map information to be displayed on each of the mobile terminals 1 (1), 1 (2), 1 (3),.

  Thereby, in each of the mobile terminals 1 (1), 1 (2), 1 (3),..., The map information provided from the server 3 and the route to be followed are displayed on the display screen. In each of the mobile terminals 1 (1), 1 (2), 1 (3),..., The current position of the own device that changes every moment is displayed on the displayed map, and provided from the server 3, for example. Route guidance processing (navigation processing) is performed using the received display message and voice message.

  In addition, the navigation device of this embodiment performs navigation of a walking route using a train. The navigation device of this embodiment realizes a function of accurately specifying the location on the platform of the disembarking station where the user got off the train when the navigation of the walking route using the train is performed.

  Then, the moving direction on the platform is also appropriately guided according to the specified location on the platform and the route obtained by searching. As a result, route guidance from the getting-off station can be performed seamlessly, so that inconveniences such as getting lost at the getting-off station and making a mistake in the ticket gate to be taken out are prevented.

  In order to accurately specify the user's dismounting position on the platform at such a disembarking station, the navigation device of this embodiment has an access point (hereinafter abbreviated as AP) that is a WiFi standard wireless LAN base station. Use the transmission signal from In the case of a WiFi standard wireless LAN, the communicable distance between the AP and the portable terminal cannot be defined unconditionally due to the output of a transmission signal or the influence of an obstacle, but within an area where the distance from the AP is approximately 60 m or less. It is assumed that the communication can be performed satisfactorily.

  In recent years, a large number of WiFi standard APs are installed at railway stations and the like, and an environment in which high-function mobile phone terminals and tablet PCs can be connected to the Internet through APs has been established. And the mobile terminals 1 (1), 1 (2), 1 (3),..., Even if they are not actually connectable APs, in order to search for connectable APs, It is possible to transmit and receive, recognize the SSID (Service Set Identifier) of each AP, and detect the reception strength.

  For this reason, each of the mobile terminals 1 (1), 1 (2), 1 (3),... In this embodiment receives a transmission signal from each AP at, for example, an exit station of the railway, Is acquired (extracted) and the received intensity of each received transmission signal is grasped in association with the SSID. Then, information (WiFi data) in which the one or more SSIDs are associated with the reception intensity of the corresponding transmission signal is included in the notification information Pb and transmitted to the server 3.

  In the server 3, the installation position of each communicable AP is grasped at each station of the railroad, and the area where the transmission signal from each AP can be received is grasped as the area corresponding to the reception intensity. . That is, for each platform at each railway station, the server 3 is an SSID that is identification information of each AP of a wireless LAN capable of wireless communication, an area where a transmission signal can be received from each AP, and each AP. It stores and holds WiFi map information that correlates the received signal strength.

  The server 3 receives the notification information Pb from the mobile terminals 1 (1), 1 (2), 1 (3),..., And stores the WiFi map information based on the SSID and reception strength included in the notification information Pb. refer. Thereby, each of the portable terminals 1 (1), 1 (2), 1 (3),... That has transmitted the notification information Pb can specify which platform of which station of the railway is located. Then, the server 3 considers the location of the specified mobile terminals 1 (1), 1 (2), 1 (3),..., The location on the platform, and the route to be traced on the platform. , So that we can properly guide which direction to go.

  Hereinafter, configuration examples and details of operations and the like of the mobile terminals 1 (1), 1 (2), 1 (3),... And the server 3 constituting the navigation device of this embodiment will be described. Various types of mobile terminals 1 (1), 1 (2), 1 (3),... Which are high-function telephone terminals are provided by a plurality of manufacturers. The same. Therefore, in the following, unless otherwise indicated, the mobile terminals 1 (1), 1 (2), 1 (3),... Are collectively referred to as the mobile terminal 1, and its basic configuration An example will be described.

[Configuration example of mobile terminal 1]
FIG. 2 is a block diagram for explaining a configuration example of the mobile terminal 1 according to this embodiment. In the mobile terminal 1 shown in FIG. 2, the wireless communication unit 101 converts the signal received through the network 2 into data that can be processed by the own device, or converts various data for transmission into signals that comply with the protocol. For example, the data is converted and sent to the network 2. The wireless communication unit 101 is connected to a transmission / reception antenna 101A.

  The control unit 102 controls each unit of the mobile terminal 1 and is configured by connecting a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory) through a CPU bus, although not shown. Computer device. The control unit 102 also functions as an application execution unit that executes various applications.

  The storage device 103 includes, for example, a nonvolatile memory as a recording medium, and performs writing / recording holding / reading / deleting various application programs and data obtained by various processes to the nonvolatile memory. The operation unit 104 includes hardware keys provided in the mobile terminal 1, receives an operation input from the user, and supplies the received information to the control unit 102. The hardware keys provided on the operation unit 104 are, for example, a power on / off key, some function keys for executing basic functions, and arrow keys.

  The time control unit 105 manages the current date, current day, and current time. The sensor unit 106 includes, for example, an acceleration sensor and an orientation sensor (geomagnetic sensor). The acceleration sensor detects the inclination of the mobile terminal 1 in order to specify the attitude of the mobile terminal 1, or detects whether the mobile terminal 1 is moving or stopped. The direction sensor detects which direction the mobile terminal 1 is facing by detecting geomagnetism. With these sensors, the posture and orientation of the mobile terminal 1 can be specified, and a so-called navigation function or the like can be appropriately provided.

  The sensor unit 106 may be a triaxial (front / rear, left / right, up / down) acceleration sensor or a 6-axis sensor that combines an acceleration sensor and an angular velocity sensor. Further, an altitude sensor (atmospheric pressure sensor) can be provided so that the altitude at the location of the mobile terminal 1 can be detected. However, since the altitude on the road is also maintained as data associated with each link of the road network data, if the current position is known, the altitude at that position can also be specified from the road network data.

  The wireless LAN unit 107 corresponds to a WiFi standard wireless LAN, and transmits and receives signals to and from nearby WiFi standard APs (access points). Note that the wireless LAN unit 107 has a function of extracting the SSID that identifies the AP that is the transmission source of the received signal from the received signal, and detecting the reception strength (reception field strength) of the received signal. Also equipped. The wireless LAN unit 107 is connected to a wireless LAN antenna 107A. The GPS unit 108 and the GPS antenna 108A measure the current position of the own device.

  The display unit 109 receives various image data and video data, converts them into video signals, and displays images and videos corresponding to the video signals on its own display screen. The touch panel 110 attached to the display screen of the display unit 109 constitutes a so-called software key together with information displayed on the display screen. Therefore, the control unit 102 can recognize the instruction input from the user based on the information indicating the user's designated position from the touch panel 110 and the information displayed on the display screen of the display unit 109 corresponding to the designated position. It is like that.

  The audio output unit 111 converts various audio data supplied thereto into an analog audio signal and supplies the analog audio signal to the speaker 112. As a result, sound corresponding to the sound data supplied to the sound output unit 111 is emitted from the speaker 112. The audio output unit 111 and the speaker 112 are used when a TTS (Text To Speech) function is realized.

  For example, the navigation processing unit 113 forms a route search request in response to an operation input from a user received through the touch panel 110, and transmits the route search request to the server 3. In response to this, the server 3 sends a route search result or a map. Receive information. Transmission of a route search request, reception of a route search result, and map information are performed through the wireless communication unit 101 and the transmission / reception antenna 101A. Information received from the server 3 is stored in the storage device 103. Then, the navigation processing unit 113 receives the provision, displays a map according to the map information stored in the storage device 103 and a route search result on the display unit 109, and displays the current position of the own device acquired through the GPS unit 108. A process for performing route guidance (navigation) is executed on the map displayed at 109.

  The navigation processing unit 113 also performs a process of emitting sound guidance information from the speaker 112. For example, by supplying voice data of a voice message such as “Please turn right at the next intersection” to the voice output unit 111, the voice message is emitted from the speaker 112. Note that the voice data forming the voice message can be provided from the server 3 or stored in the storage device 103. As described above, the navigation processing unit 113 performs navigation processing based on display information such as a map displayed on the display unit 109 and audio information emitted through the audio output unit 111 and the speaker 112.

  The notification information forming unit 114 forms notification information (so-called probe information) Pb to be provided to the server 3 at a predetermined timing, for example, every minute, under the control of the control unit 102. Process to send to. The notification information is also transmitted to the network 2 through the wireless communication unit 101 and the transmission / reception antenna 101A and transmitted to the server 3. FIG. 3 is a diagram for explaining an example of notification information generated in the notification information forming unit 114.

  As shown in FIG. 3, the notification information generated by the notification information forming unit 114 is roughly composed of a user ID, positioning data, and one or more WiFi data. The character “ID” in the user ID is an abbreviation for “identification” which means identification information. The user ID is information that can uniquely identify the user. If membership registration is required for the server 3, the member ID assigned to the user is used, or an e-mail address or telephone number is used. Can also be used. In this embodiment, for example, an e-mail address is used as the user ID.

  In the positioning data, the position is position information indicating the current position acquired through the GPS unit 108 and is latitude / longitude information. Of the positioning data, the date and time is the acquisition date and time of the current position, and is the date and time information acquired through the time control unit 105. Further, the one or more WiFi data 1,... Includes an SSID extracted from a transmission signal from the WiFi standard AP received through the wireless LAN antenna 107 </ b> A and the wireless LAN unit 107, and reception strength of the transmission signal.

  In FIG. 3, a plurality of WiFi data storage areas such as WiFi data 1, WiFi data 2,... Are often provided with a plurality of APs in the vicinity. Through the wireless LAN antenna 107A and the wireless LAN unit 107, transmission signals from a plurality of neighboring APs can be received simultaneously, and the wireless LAN unit 107 can determine the SSID and reception strength of the transmission source AP from each of them. This is because it can be detected.

  Thus, by having a plurality of WiFi data, the server 3 can refer to the WiFi map information based on a plurality of SSIDs and reception strengths. Thereby, the area where each transmission signal from each AP specified by the plurality of SSIDs can be received with the detected reception intensity, that is, the location of the mobile terminal 1 can be accurately specified.

  The notification information Pb having the configuration shown in FIG. 3 is generated by the notification information forming unit 114 at predetermined time intervals, transmitted to the network 2 through the wireless communication unit 101 and the transmission / reception antenna 101A, and transmitted to the server 3. The Also, the configuration example of the notification information shown in FIG. 3 is merely an example, and other necessary information can be added.

  As described above, the mobile terminal 1 according to this embodiment is realized by a high-function mobile phone terminal, and includes a call processing unit, a receiver, a transmitter, and the like for realizing a call function. Is. However, in this embodiment, since the call processing function is not particularly related, the part for realizing the call processing function is omitted in FIG.

[Configuration Example of Navigation Server Device 3]
FIG. 4 is a block diagram for explaining a configuration example of the server 3 according to this embodiment. In the server 3 shown in FIG. 4, the communication I / F 301 converts the signal received through the network 2 into data that can be processed by the own device, or converts various data for transmission into a signal that conforms to the protocol. Or send it to the network 2.

  The control unit 302 controls each unit of the server 3 and is a computer device configured by connecting a CPU, a ROM, and a RAM through a CPU bus (not shown). The control unit 302 also functions as an application execution unit that executes various applications. The storage device 303 includes a hard disk as a recording medium, and performs writing / recording holding / reading / deleting various application programs and data obtained by various processes to the hard disk.

  Each of the map DB 304, the train network DB 305, the AP (access point) management DB 306, the WiFi map DB 307, and the pedestrian network DB 308 is formed on a large-capacity recording medium such as a hard disk and stores predetermined data. Here, the character “DB” is an abbreviation for database.

  The map DB 304 stores and holds various map information (map data) such as vector data, raster data, and annotation (annotation) data for drawing a map in association with latitude / longitude information. Specifically, the map information accumulated in the map DB 304 is formed for each predetermined type (for each layer) such as a road, a railway, a river, a mountain, a commercial facility, a financial institution, a house, and a sign. The map information includes polygon data for the various facilities described above, vector data and raster data, annotation (annotation) data, etc. for drawing a local map of each station of the railway.

  The train network DB 305 includes station node data and link data between stations of each railway company, transfer link data between routes, access / egress link data, and the like. The station node data includes information such as an operating entity, route name, and station name, and the inter-station link data includes information such as an operating entity, route name, distance, speed, and fare. The transfer link data has information such as distance, speed, and fare. The link from the departure point to the nearest station is an access link, and the link from the stop station to the destination is an egress link. For this reason, the access egress link simply means various links to station nodes other than the inter-station link. The train network DB 305 also includes schedule information for each route of the train. With the train network data in the train network DB 305, it is possible to realize the search and guidance of the route that the user should travel by train in the route from the departure point to the destination.

  The AP management DB 306 stores and holds data in which the SSID of the WiFi standard AP (access point) that transmits signals that can be received on the platform of each railway station and the vicinity thereof is associated with the installation position. FIG. 5 is a diagram for explaining an example of data stored in the AP management DB 306. As shown in FIG. 5, in the AP management DB 306, for each station specified by the station ID, the station name and the AP specified by the SSID are installed at which platform (installation home) (installation position). To manage. The installation position is indicated by latitude and longitude.

  Specifically, in the case of the example shown in FIG. 5, the “A station” identified by the AP management DB 306 with the station ID “00001” has an SSID of “AP1”, “AP2”, “AP3”, etc. It is managed that a plurality of APs are installed in the 1st and 2nd line homes. The installation positions of “AP1”, “AP2”, and “AP3” are managed such that (latitude, longitude) are (Xa1, Ya1), (Xa2, Ya2) (Xa3, Ya3). Yes. In addition, for each AP, information on performance such as manufacturer, model number, and transmission speed is also managed. For other stations, similar information is managed by the AP management DB 306.

  The WiFi map DB 307 manages information related to the area where the transmission signal can be received from the WiFi standard AP on the platform of each station and its surroundings in association with the reception intensity of the transmission signal. FIG. 6 is a diagram for describing an example of an area where a transmission signal from an AP can be received and an example of a WiFi map. FIG. 6A is a diagram showing an area according to the AP installation position and reception strength in a home where a certain station is grasped based on the management data of the AP management DB 306 described above.

  That is, according to the management data of the AP management DB 306, as shown in FIG. 6A, where each AP is installed on each platform of each station, and according to the reception strength of transmission signals from those APs. Theoretical coverage area can be grasped. And since the platform of a station is elongate, the SSID of AP which appears by an exit or a transfer platform is notified to the server 3 by notification information Pb in order.

  Therefore, in the server 3, each mobile terminal 1 transmits from one or more APs according to one or more WiFi data included in the notification information Pb from many mobile terminals 1 based on the management data of the AP management DB 306. The position where the signal is received is specified sequentially. Then, when the specified positions are plotted on the platform and the layout in the vicinity thereof, a WiFi map corresponding to a large number of WiFi data (actually measured values) from each mobile terminal 1 can be formed.

  In this manner, based on a large number of WiFi data (actually measured values) from each portable terminal 1, as shown in FIG. 6B, an area where the transmission signal from the AP on the platform can be received is specified. This is stored and held in the WiFi map DB 307 as a WiFi map. FIG. 7 is a diagram for explaining an example of data stored in the WiFi map DB 307.

  In the case of the WiFi map DB 307 of this embodiment, in order to simplify the description, the receivable area corresponding to the reception intensity of the transmission signal from each AP is specified as a quadrangular area specified by four vertices. It is assumed that it is managed. Here, the description will be made assuming that the radio wave intensity (signal level) is used as the reception intensity. In the case of the example in FIG. 7, the areas where the transmission signal from the AP 1 can be received at a reception intensity of −0 dBm to −60 dBm are (Latitude, Longitude) are (X101, Y101), (X102, Y102), (X103, Y103) and (X104, Y104) are managed as a rectangular area identified by four points.

  Similarly, areas that can receive transmission signals from AP1 at reception strengths of -60 dBm to -80 dBm and areas that can be received at reception strengths of -80 dBm to -100 dBm are identified by four points as shown in FIG. Is managed as a rectangular area. Similarly, areas where other transmission signals from the AP can be received are also recognized as areas according to the reception intensity.

  In this example, in order to simplify the description, it is assumed that each area according to the reception intensity is approximately the following area. That is, an area having a reception intensity of −0 dBm to −60 dBm is an area where the reception intensity is sufficient and good communication is possible. Further, an area having a reception intensity of −60 dBm to −80 dBm can be connected, but is an area where guarantee of high-speed communication is slightly low. Further, the area where the reception intensity is −80 dBm to −100 dBm is an area where the connection is slightly unstable and low-speed communication is possible.

  For example, as shown in FIG. 6B, an area where the transmission signal from AP1 can be received at a reception intensity of −0 dBm to −60 dBm is an area 1A, and an area where a transmission signal of −60 dBm to −80 dBm can be received. An area that can be received at area 1B and reception intensity of −80 dBm to −100 dBm is area 1C. Similarly, an area where the transmission signal from AP2 can be received at a reception strength of −0 dBm to −60 dBm is received in area 2A, an area which can be received at a reception strength of −60 dBm to −80 dBm is received at area 2B, and a reception strength of −80 dBm to −100 dBm is received. Let the possible area be area 2C.

  In this case, it is assumed that WiFi data “SSID = AP1, reception strength = −70 dBm” and “SSID = AP2, reception strength = −90 dBm” is included in the notification information from the portable terminal 1 of a certain user. The server 3 refers to the WiFi map DB 307 based on these WiFi data. Then, the server 3 positions the mobile terminal 1 in an area where an area 1B where the transmission signal from the AP 1 can be received at a reception intensity of −70 dBm and an area 2A where the transmission signal from the AP 2 can be received at a reception intensity of −90 dBm overlap. It can be determined that it is. Specifically, the location of the mobile terminal 1 can be specified as an area indicated by hatching in FIG.

  As described above, the server 3 according to this embodiment includes the AP management DB 306 having the configuration shown in FIG. 5 and the WiFi map DB 307 having the configuration shown in FIG. Then, by using these databases, the server 3 appropriately determines the location of the mobile terminal 1 on the platform of the station and its vicinity based on one or more WiFi data included in the notification information from the mobile terminal 1. Can be identified.

  Here, the radio wave intensity (dBm (decibel millimeter)) is used as the reception intensity, but the present invention is not limited to this. The potential per unit length (reception intensity (V / m)) may be measured and used. For simplicity, a value corresponding to the ratio of the amount of received data at the mobile terminal 1 per unit time (for example, 1 second) with respect to the transmission rate of the AP may be used as the electric field strength. For example, when the transmission rate of the AP is 54 Mbps, if the amount of received data at the portable terminal 1 per unit time is 54 Mbit, the reception strength is 100%, and the amount of received data at the portable terminal 1 per unit time If 4 is 48.6 Mbits, the received intensity may be grasped as 90%.

  In this embodiment, as shown in FIG. 6B, the receivable area corresponding to the reception intensity of the transmission signal from the AP in the WiFi map is a rectangular area for the sake of simplicity of explanation. Although described as being, it is not limited to this. It can be set as the area of various shapes according to the distribution of the reception position of the portable terminal 1 of the transmission signal from AP shown by the WiFi data contained in the notification information from the portable terminal 1. Then, by specifying the receivable area according to the reception strength of the transmission signal from the AP in the WiFi map as much as possible, the accuracy of the location on the platform of the mobile terminal can be improved.

  The pedestrian network DB 308 stores and holds pedestrian road network data including node data and link data. The node data represents points such as landmarks, buildings, facilities, intersections, branch points, and bending points. In addition, link data includes general roads that pedestrians can pass by line segments connecting node data, sidewalks, pedestrian crossings, pedestrian bridges, and pedestrian paths that can pass through buildings and parks. Indicates a road that pedestrians can pass through. In addition, the pedestrian network DB 308 also manages the routes that can be passed in the station premises by using nodes and links. Each link data is associated with information such as the number of the node constituting the link, the link cost, and the link type.

  The link cost represents a load applied to the user when traveling on the road represented by the link. In this embodiment, the link cost includes both a cost according to the length of the road represented by the link and a cost according to the time required to travel along the road represented by the link. The link cost is referred to when searching for a route with the minimum link cost by the so-called Dijkstra method. The link type is information indicating whether the link part is one of an expressway, a national road, a prefectural road, a municipal road, or a private road. In addition, the link data includes detailed information such as the width of the link. With the pedestrian network data in the pedestrian network DB 308, the search and guidance of the route that the user should move on foot in the route from the departure point to the destination is realized.

  The route search unit 309 uses a train of a type selected by the user in response to a route search request from the mobile terminal 1 of each user, and displays a route from the departure place to the destination by using the train network DB 305, the pedestrian Search based on information in the network DB 308. In this embodiment, the route of walking movement is basically searched, but at that time, when moving from the departure place to the destination using one or more of the Shinkansen, limited express train, ordinary train, etc. A suitable route can be searched. The route search unit 309 prepares the route search result as data for transmission and transmits the data to the requesting user's mobile terminal 1 through the communication I / F 301.

  The map providing unit 310 uses the map information from the map DB 304 for the navigation processing based on the route search result of the route search unit 309 and the position information indicating the current position included in the notification information Pb from the user's mobile terminal 1. Is extracted and provided to the mobile terminal 1 of the user. In addition to the map information, the map providing unit 310 also provides display message data, voice message data, and the like to the user's mobile terminal as needed. The map information and the like provided to the mobile terminal 1 by the map providing unit 310 is transmitted to the network 2 through the communication I / F 301 and is transmitted to the mobile terminal 1 of the target user.

  The WiFi check unit 311 refers to the WiFi map DB 307 based on the WiFi data included in the received notification information Pb from the mobile terminal 1, and identifies the location of the mobile terminal 1 on or near the platform. Then, the control unit 302 specifies the moving direction on the platform based on the location of the mobile terminal 1 that is the transmission source of the notification information Pb or in the vicinity thereof, and specifies information indicating the moving direction. Provided for mobile communication terminals. Information indicating the moving direction is also transmitted to the network 2 through the communication I / F 301 and transmitted to the mobile terminal 1 that is the transmission source of the notification information.

  The notification information file 312 is created on a large-capacity storage medium such as a hard disk, and stores and holds notification information Pb from the mobile terminals 1 of various users. That is, the notification information Pb addressed to the server 3 transmitted from the mobile terminals 1 of various users is received through the communication I / F 301, provided to the WiFi check unit 311 through the control unit 302, and recorded in the notification information file 312. Is done.

  The WiFi map creation unit 313 refers to the AP management DB 306 based on the WiFi data of each notification information Pb accumulated in the notification information file 312, or on the platform of the mobile terminal 1 that is the transmission source of each notification information, or its Identify nearby locations. Then, the WiFi map creation unit 313 plots the specified location of each mobile terminal 1 on the platform or a layout in the vicinity thereof. In this way, a location on or near the platform of a large number of mobile terminals is specified, and in accordance with this, a receivable area corresponding to the reception intensity of the transmission signal from each AP is specified. It is registered and managed in the map DB 307.

  In this manner, the WiFi map creation unit 313 performs processing for analyzing the WiFi data of each notification information Pb accumulated in the notification information file 312. As described above, since the station platform is long, the WiFi data changes as the mobile terminal 1 moves. Thereby, according to the reception position based on the WiFi data which goes up sequentially, the area which can receive the transmission signal from the AP in the platform and its vicinity is specified as the area corresponding to the reception intensity. The function of the WiFi map creation unit 313 is to create a WiFi map such as the example shown in FIGS. 6B and 7 and manage it with the WiFi map DB 307. Note that the WiFi map creation unit 313 of this embodiment can also update the WiFi map with the notification information newly stored in the notification information file 312 as a processing target.

  The server 3 having such a configuration searches for an appropriate route (movement route) of the user when walking on the train using a train, provides the search result to the mobile terminal 1, and the mobile terminal 1 Navigation processing (route guidance processing) is provided to the user through In addition, it is possible to appropriately guide the moving direction on the platform of the station, which has not been able to accurately guide conventionally.

[An example of processing performed in each of the mobile terminal 1 and the server 3]
Hereinafter, an example of processing performed by the mobile terminal 1 having the configuration described with reference to FIGS. 2 and 3 and an example of processing performed by the server 3 having the configuration described using FIGS. This will be described with reference to a flowchart.

[An example of navigation processing performed in the portable terminal 1]
First, the navigation process performed in the portable terminal 1 used by the user who walks also using a train will be described. 8 to 10 are flowcharts for explaining the navigation process executed by the mobile terminal 1. FIG. 11 is a diagram illustrating an example of an input screen displayed on the display unit 109 of the mobile terminal 1 in the navigation processing illustrated in FIGS. 8 to 10.

  The navigation processing shown in FIGS. 8 to 10 is executed in the control unit 102 when the user selects a corresponding item from a predetermined navigation-related menu displayed on the display unit 109 of the mobile terminal 1. That is, it is executed when an item for executing the process such as “navigation process” is selected from a predetermined menu.

  When the navigation processing is executed, the control unit 102 accesses the site using a URL (Uniform Resource Locator) of a predetermined site provided in the server 3 and connects a communication line (step S101). The URL of the site is prepared in advance in the storage device 103, for example. And the control part 102 receives provision of a predetermined | prescribed initial screen from the server 3, and displays this on the display part 109 (step S102). In step S102, an initial screen as shown in FIG.

  As shown in FIG. 11A, the initial screen displayed on the display unit 109 in step S102 includes input fields for departure place, waypoint, destination, departure date and time, and a check box for selecting a train type. Is provided. In addition, an “end” button and an “OK” button are provided on the lower end side of the initial screen. In the initial screen of this example, when the cursor is positioned at each input of departure point, waypoint, and destination, a software keyboard is displayed on the display unit 109, and facilities and landmarks corresponding to the departure point, waypoint, and destination are displayed. The name and address can be entered. Note that the departure point and the destination are indispensable input items, but the waypoint is an arbitrary input item.

  In addition, when the cursor is positioned in the departure date / time column, for example, a selection item such as “Immediate” or a selection item of year / month / day and hour / minute (date / time) is displayed in the form of a pull-down menu. Input is enabled. In this embodiment, it is possible to search and navigate a walking route using a train, and the train type to be used can be selected from three types: Shinkansen, limited express, and ordinary.

  This is because the fare for the Shinkansen and limited express trains is different from the usual (stop at each station) fare. In addition, there are usually types of trains that do not differ from ordinary (stop at each station) fares such as express, semi-express, and rapid. A check box corresponding to the type of train that may be used can be checked through the touch panel 110. Of course, it is also possible to remove the check by touching again.

  Then, in step S102, the control unit 102 receives an operation input for the initial screen displayed on the display unit 109 (step S103). Thereafter, the control unit 102 determines whether or not the “end” button has been operated (step S104). Assume that it is determined in the determination process in step S104 that the “end” button has been operated. In this case, the control unit 102 proceeds to the process of step S137 in FIG. 10, erases the initial screen, returns to the state before the start of the navigation process, or notifies the server 3 of an instruction to end the navigation process. A predetermined termination process such as is performed (step S137). Then, the processing shown in FIGS. 8 to 10 ends.

  Further, in the determination process of step S104, when it is determined that the “end” button has not been operated, the control unit 102 has input all necessary items to the initial screen shown in FIG. It is determined whether or not the “OK” button has been operated (step S105). If it is determined in step S105 that the “OK” button has not been operated after all necessary items have been input, the processing from step S103 is repeated.

  Assume that in the determination process of step S105, it is determined that the “OK” button has been operated after all necessary items have been input. In this case, the control unit 102 controls the navigation processing unit 113 to form a route search request including the input information and transmits it to the server 3 (step S106). Thereafter, the navigation processing unit 113 receives the route search result transmitted from the server 3 under the control of the control unit 102 (step S107), and displays the received route search result on the display unit 109 (step S108). ).

  FIG. 11B is a diagram for explaining an example of the route search result displayed on the display unit 109 in step S108. In this embodiment, since a walking route using a train is searched, when a plurality of routes can be searched, the plurality of routes are displayed as a list as shown in FIG. In this case, as shown in Fig. 11 (B), information such as the name of the railway line to be used, the departure time of the train at the boarding station, the fare, and the time required for the entire process are displayed. The user can select the route to use. In addition, a “return” button and an “OK” button are displayed on the lower end side of the display unit 109.

  Although not shown in FIG. 11B, by positioning the cursor CS on the display information of the candidate route, more detailed information is displayed in the display area below the display unit 109. You can also do that. Then, the control unit 102 receives an operation input for the route selection screen shown in FIG. 11B through the touch panel 110 (step S109), and determines whether or not the “OK” button has been operated (step S109). S110).

  When determining in step S110 that the “OK” button has not been operated, the control unit 102 determines whether or not the “return” button has been operated (step S111). If it is determined in the determination process in step S111 that the “return” button has not been operated, the effective operation has not been performed. Therefore, the process from step S109 may be repeated, and the route shown in FIG. The selection screen can be operated.

  Also, assume that it is determined in the determination process in step S111 that the “return” button has been operated. In this case, the control unit 102 performs processing such as deleting the route selection screen shown in FIG. 11B or notifying the server 3 that the screen returns to the initial screen (step S112). Repeat the process from. Thereby, the initial screen shown in FIG. 11A is displayed again, and it is possible to start again from the input of the route search condition.

  When it is determined in the determination process in step S110 that the “OK” button has been operated, the server 3 is notified of the selected route selected by positioning the cursor CS on the route selection screen in FIG. (Step S113). Accordingly, since the server 3 provides information necessary for navigation such as map information for displaying information according to the route, the control unit 102 controls the navigation processing unit 113 to perform navigation processing. Start (step S114).

  That is, in step S <b> 114, the control unit 102 receives information necessary for navigation processing such as map information from the server 3 and stores it in the storage device 103. Then, the control unit 102 controls the navigation processing unit 113 to display a map showing a route that the user should follow, or to output a display message or a voice message to the user so that the route can be followed. Start processing.

  Thereafter, the control unit 102 controls the notification information forming unit 114 to form the notification information Pb described with reference to FIG. 3 at every predetermined time interval (for example, every minute), and notify the server 3. Is started (step S115). As described with reference to FIG. 3, the notification information Pb includes a user ID, positioning data, and one or more WiFi data. However, at the stage when the notification information notification process in step S115 is started, a so-called WiFi scan process for receiving a transmission signal from a WiFi standard AP and extracting an SSID and detecting a reception intensity is still performed. Absent.

  Therefore, until the WiFi scan is started, the notification information Pb including the user ID, the current position measured through the GPS unit 108 and the acquisition date / time of the current position acquired from the time control unit 105 is formed and transmitted to the server 3. Is done. As a result, the server 3 can grasp the current position of the portable terminal 1 that is the transmission source of the notification information from the positioning data, and accordingly, map information that is necessary in the navigation process started in step S114 is appropriately selected. Can be provided.

  Then, the control unit 102 proceeds to the process of FIG. Based on the current position acquired through the GPS unit 108 and the map information provided from the server 3, the control unit 102 determines whether or not it has reached the boarding station on the route searched for the target train. It discriminate | determines (step S116). When it is determined in step S116 that the boarding station has not been reached, an operation input from the user is accepted (step S117). Then, it is determined whether or not an operation for ending the navigation processing such as operation of an “end” button has been performed (step S118).

  Assume that it is determined in the determination process in step S118 that an operation for ending the navigation process has been performed. In this case, the control unit 102 proceeds to the process of step S137 in FIG. 10, performs a predetermined end process (step S137) as described above, and ends the processes shown in FIGS. Further, in the determination process of step S118, when it is determined that the operation for ending the navigation process is not performed, the process from step S116 is repeated, the navigation process is continued, and the arrival at the boarding station is detected. .

  If it is determined in step S116 that the vehicle has reached the boarding station, the control unit 102 controls the sensor unit 106 to activate the acceleration sensor (step S119). The reason why the acceleration sensor is activated in this way is to detect a case where the boarded train stops. And the control part 102 discriminate | determines whether it reached | attained the target getting-off station on the searched route | root based on the current position acquired through the GPS part 108, and the map information provided from the server 3 ( Step S120).

  When it is determined in step S120 that the vehicle has not reached the getting-off station, an operation input from the user is accepted (step S121). Then, it is determined whether or not an operation for ending the navigation processing such as operation of the “end” button has been performed (step S122). Assume that in the determination process in step S122, it is determined that an operation for ending the navigation process has been performed. In this case, the control unit 102 proceeds to the process of step S137 in FIG. 10, performs a predetermined end process (step S137), and ends the processes shown in FIGS. Further, in the determination process of step S122, when it is determined that the operation for ending the navigation process is not performed, the process from step S120 is repeated, the navigation process is continued, and the arrival at the getting-off station is detected. .

  When it is determined in step S120 that the destination station has been reached, the control unit 102 confirms the detection output of the acceleration sensor of the sensor unit 106 activated in step S119, and the train on board has stopped. Whether or not (step S123). When it is determined in the determination process of step S123 that the train on board is not stopped, an operation input from the user is received (step S124), and it is determined whether or not a predetermined operation for ending the navigation process has been performed. (Step S125).

  In the determination process of step S125, when it is determined that an operation for ending the navigation process has been performed, the control unit 102 proceeds to the process of step S137 in FIG. Then, the control unit 102 performs a predetermined end process (step S137) and ends the processes shown in FIGS. If it is determined in step S125 that the operation for ending the navigation process has not been performed, the process from step S123 is repeated to continue the navigation process and detect that the train on board has stopped. Like that.

  When it is determined in the determination process of step S123 that the train on board has stopped at the intended getting-off station, the control unit 102 starts the WiFi scan process through the wireless LAN antenna 107A and the wireless LAN unit 107 (step S123). S126). That is, the control unit 102 controls the wireless LAN unit 107, receives a transmission signal from a surrounding WiFi standard AP, extracts an SSID, and detects reception intensity.

  As described above, since the WiFi data (SSID and reception intensity) can be acquired by starting the WiFi scan process in step S126, the control unit 102 notifies the acquired one or more corresponding SSID and reception intensity. It supplies to the formation part 114. Accordingly, the notification information Pb transmitted from the portable terminal 1 to the server 3 by the notification information transmission processing started in step S115 of FIG. 8 includes one or more WiFi data as shown in FIG. Will be.

  In the server 3, the location of the mobile terminal 1 that is the notification source of the notification information on the platform at the disembarking station can be specified by the information in the WiFi map DB 307 as described above. For this reason, after step S126, navigation in the moving direction on the platform is also performed in the navigation processing being executed.

  Specifically, based on the map information provided from the server 3, a map including the platform of the getting-off station is displayed as shown in FIG. On the displayed map, for example, a black circle P indicating the location (current position) of the mobile terminal 1, an arrow indicating the direction to be traveled, and a message “Get off the train and go right”. Message. The location, the arrow, and the display message are displayed according to the navigation information provided from the server 3.

  That is, the server 3 provides the current position on the platform, information indicating the direction to be traveled, and display information, and these are displayed on the display unit 109. In addition, voice information (voice message) to be emitted is provided as necessary, and this is supplied to the voice output unit 111 so that voice guidance according to the voice information can be emitted from the speaker 112. ing. In this way, navigation on the platform of a station that could not be performed conventionally can be performed appropriately.

  And the control part 102 discriminate | determines whether the said alighting station is a transfer station on the searched route (step S127). If it is determined in step S127 that the station is a transfer station, it is determined whether or not the boarding platform has been reached (step S128). The determination process in step S128 can be determined based on information indicating the current position on the home or the like that is determined in the server 3 by the WiFi data included in the notification information and provided as one piece of navigation information.

  When it is determined in step S128 that the current position is not the boarding home, it is considered that the vehicle is moving to the boarding home, and therefore the processing from step S128 is repeated. Further, in the determination process of step S128, when it is determined that the current position is the boarding platform, it is in a state of moving on a train and it is not necessary to specify the position on the platform, so the WiFi scan is stopped (step S128). S129), the process from step S120 is repeated.

  If it is determined in step S127 that the disembarking station is not a transfer station, it is determined whether or not the current position is within the station (step S130). The determination process in step S130 can also be determined based on information indicating the current position on the home or the like that is determined in the server 3 by the WiFi data included in the notification information and provided as one piece of navigation information. In the determination process of step S130, when it is determined that the current position is within the station, an operation input from the user is accepted (step S131), and it is determined whether a predetermined operation for ending the navigation process has been performed (step S131). S132).

  In the determination process of step S132, when it is determined that an operation for ending the navigation process has been performed, the control unit 102 proceeds to the process of step S137 in FIG. And the control part 102 performs a predetermined | prescribed termination process (step S137), and complete | finishes the process shown to these FIGS. If it is determined in step S132 that the operation for ending the navigation process has not been performed, the process from step S130 is repeated to continue the navigation process and perform the navigation process in the station.

  If it is determined in step S130 that the current position is not within the station, it can be determined that the train route has changed to a walking route. In this case, the control unit 102 proceeds to the process of FIG. 10, stops the acceleration sensor (step S133), and stops the WiFi scan (step S134). Thereby, the navigation mode of the train route is changed to the navigation mode of the walking route.

  And the control part 102 receives the operation input from a user (step S135), and discriminate | determines whether predetermined operation which complete | finishes a navigation process was performed (step S136). When the destination is reached, an operation input for ending the navigation process is performed in step S135. If it is determined in step S136 that the operation for ending the navigation process has not been performed, the process from step S135 is repeated to continue the navigation process.

  Further, it is assumed that it is determined in the determination process in step S136 that an operation for ending the navigation process has been performed. In this case, the control unit 102 deletes the navigation screen, performs a predetermined end process such as notifying the server 3 that the navigation is to be ended (step S137), and performs the processes shown in FIGS. finish.

  As described above, in the mobile terminal 1 of this embodiment, when reaching the boarding station on the route, the navigation mode of the train route is entered, and the acceleration sensor is activated to detect the stop timing of the train on the getting-off station. To do. Then, the WiFi scan is started at the stop timing of the train on the getting-off station, and the WiFi data is included in the notification information to be provided to the server 3, and the navigation in the moving direction on the platform of the getting-off station is also appropriately performed. It can be carried out. In addition, in the station premises, by providing WiFi data in the notification information and providing it to the server 3, navigation within the station premises according to the WiFi data can also be realized.

[An example of navigation support processing performed by the server 3]
Next, a navigation support process executed in the server 3 in order to realize the navigation function in the mobile terminal 1 will be described. 12 and 13 are flowcharts for explaining the navigation support process executed by the server 3. The user support processing shown in FIGS. 12 and 13 is processing that is always executed mainly in the control unit 302 of the server 3.

  In this navigation support process, the control unit 302 receives a large number of users from the respective mobile terminals 1 through the communication I / F 301 (step S201), and determines whether or not an access to the own device has been received. (Step S202). If it is determined in step S202 that the access addressed to the device is not accepted, the processing from step S201 is repeated.

  If it is determined in step S202 that the access addressed to the device has been accepted, a communication path is connected to the mobile terminal 1 that is the access source, and the initial screen shown in FIG. This is provided to the terminal 1 (step S203). Thereafter, the control unit 302 receives instruction information from the mobile terminal 1 connected to the communication path (step S204), and determines whether or not the instruction information has been received (step S205).

  The instruction information that the server 3 receives from the mobile terminal 1 includes the route search request, the route selection information, the navigation processing end instruction, and the instruction to return to the initial screen as described with reference to FIGS. Etc. In the determination process of step S205, when determining that the instruction information has not been received, the control unit 302 repeats the process from step S204.

  When it is determined in the determination process of step S205 that the instruction information has been received, it is determined whether or not the received instruction information is an end instruction (step S206). If it is determined in step S206 that the end instruction has been received, the process proceeds to step S220 in FIG. In this case, a predetermined end process such as releasing a communication path connected to the access source mobile terminal 1 is performed (step S220), and the process from step S201 in FIG. 12 is repeated.

  If it is determined in step S206 that the received instruction information is not an end instruction, it is determined whether the received instruction information is a route search request (step S207). If it is determined in the determination process in step S207 that the received instruction information is not a route search request, it is determined that valid instruction information has not been received, and the control unit 302 repeats the process from step S204.

  If the received instruction information is determined to be a route search request in the determination process of step S207, the control unit 302 controls the route search unit 309 and determines the route according to the information included in the received route search request. Search processing is executed (step S208). In other words, the route search unit 309 performs route search based on the departure point, waypoint, destination, departure date and time, and the train type of the train to be used included in the route search request. Then, the control unit 302 controls the route search unit 309 and transmits the route search result to the requesting mobile terminal 1 through the communication I / F 301 (step S209). The route search result in this case is a list of route search results as shown in FIG.

  Thereafter, the control unit 302 receives instruction information from the mobile terminal 1 that provided the route search result through the communication I / F 301 (step S210), and determines whether the received instruction information is route selection information. (Step S211). When it is determined in the determination process of step S211 that the received instruction information is not route selection information, it is determined whether or not the received instruction information is instruction information indicating that the “return” button has been operated on the initial screen. (Step S212).

  Assume that it is determined in the determination process in step S212 that the received instruction information is not instruction information indicating that the “return” button has been operated on the initial screen. In this case, the control unit 302 determines that valid instruction information has not been received, and repeats the processing from step S210. In the determination process of step S212, it is assumed that the received instruction information is determined to be instruction information indicating that the “return” button has been operated on the initial screen. In this case, the control unit 302 repeats the process from step S204, and performs the process from the process of receiving the instruction information for the initial screen shown in FIG.

  If it is determined in step S211 that the received instruction information is route selection information, the control unit 302 proceeds to the process in FIG. Then, the control unit 302 starts a process of receiving notification information Pb from the mobile terminal 1 and a process of providing map information necessary for navigation (step S213). The reception process of the notification information Pb is performed through the communication I / F 301, and the provision process of the map information and the like is performed by the map provision unit 310 controlled by the control unit 302 and the route selected by the mobile terminal 1 or the mobile terminal 1. Based on the notification information Pb from. Provision of map information and the like is also transmitted to the network 2 through the communication I / F 301 and transmitted to the target mobile terminal 1.

  And the control part 302 confirms the notification information Pb from the portable terminal 1 provided sequentially, and discriminate | determines whether one or more WiFi data is contained (step S214). Assume that it is determined in the determination process in step S214 that WiFi data is included. In this case, the control unit 302 controls the WiFi check unit 311, refers to the WiFi map DB 307 based on the WiFi data included in the notification information Pb, identifies the location of the transmission source of the notification information Pb, and moves Guidance information Gd for instructing (the direction to go) is formed (step S215). And the control part 302 transmits the guidance information Gd formed in the WiFi check part 311 to the target portable terminal 1 (step S216).

  Then, the control unit 302 receives instruction information from the mobile terminal 1 (step S217), and determines whether or not the instruction information has been received (step S218). If it is determined in the determination process in step S218 that the instruction information from the portable terminal 1 has not been received, the process from step S214 is repeated to continue the navigation process and respond to the WiFi data included in the next notification information. Process.

  When it is determined in the determination process in step S218 that the instruction information has been received, it is determined whether the received instruction information is an instruction to end the navigation process formed when the “end” button is operated. (Step S219). If it is determined in the determination process in step S219 that the received instruction information is not an instruction to end the navigation process, it is determined that valid instruction information has not been received, and the process from step S214 is repeated.

  Further, in the determination process of step S219, when it is determined that the received instruction information is an instruction to end the navigation process, a predetermined end process such as releasing a communication path connected to the portable terminal 1 is performed. This is performed (step S220). Thereafter, the control unit 302 repeats the processing from step S201 shown in FIG. 12 and waits for the next access from the portable terminal 1.

  As described above, the server 3 of this embodiment performs a route search in response to a route search request from the mobile terminal 1, returns the result to the mobile terminal 1, and performs navigation processing according to the result of the route search. To be able to do. And when the user who owns the mobile terminal 1 is on the platform of the station by the function of the WiFi check unit 311 or the WiFi map DB 307, the position on the platform is also specified accurately, and the direction to proceed according to the route is appropriately determined Can be instructed.

[Another example of processing performed in each of the mobile terminal 1 and the server 3]
The processing of the mobile terminal 1 described using FIGS. 8 to 10 and the processing of the server 3 described using FIGS. 12 and 13 detect that the mobile terminal 1 has arrived at the intended exit station. , It operates on the premise that a WiFi scan is started and a position on the platform is specified. However, if the position of the mobile terminal 1 on the train on which the user carrying the mobile terminal 1 is traveling before the mobile terminal 1 arrives at the target disembarkation station, the mobile terminal 1 gets off the platform of the target disembarkation station. The position can be specified, and smoother guidance can be realized.

  Therefore, in the case of another example described below, after a user who has the mobile terminal 1 gets on the train, a train on which the user who has the mobile terminal 1 rides in front of the intended disembarking station. The position of the portable terminal 1 is specified. Then, when the train on which the user carrying the mobile terminal 1 has arrived at the intended disembarking station, based on the specified position of the mobile terminal 1 in the train on which the user with the mobile terminal 1 is on board, Identify the location of the arrival station on the arrival platform. Based on the specified location on the arrival platform at the arrival station, navigation on the platform is performed immediately after arrival.

  Also in the case of this other example, each of the mobile terminal 1 and the server 3 has the configuration described with reference to FIGS. However, the processing executed by each of the mobile terminal 1 and the server 3 is different from that in the above-described embodiment. Hereinafter, another example of processing executed by the mobile terminal 1 and the server 3 will be described with reference to flowcharts.

[Another example of navigation processing performed in the portable terminal 1]
FIG. 14 is a flowchart for explaining a main part of another example of route search and navigation processing performed in the mobile terminal 1. The processing of this example executed by the portable terminal 1 is the same as the processing of steps S120 to S126 shown in FIG. 9 in the route search and navigation processing described above with reference to FIGS. This is a change to step S309. Therefore, the processing shown in FIG. 8 and FIG. 10 is similarly executed in other examples. And in this other example, as shown in FIG. 14, it is detected that the user possessing the portable terminal 1 has reached the boarding station (the station on which the target train is boarded) on the searched route, Assume that the acceleration sensor of the sensor unit 106 is activated (step S119).

  In this case, the control unit 102 monitors the detection output of the acceleration sensor and waits for the user carrying the mobile terminal 1 to get on the traveling train (steps S301 to S303). If the current position of the mobile terminal 1 reaches the boarding station, it is not known whether or not the user has taken the train. For this reason, the control unit 102 determines whether or not the user is on a running train based on whether or not the vehicle is moving at a speed equal to or higher than a predetermined speed based on the detection output of the acceleration sensor. (Step S301).

  It is assumed that in the determination process in step S301, it is determined that the user who has the mobile terminal 1 has not yet got on the running train. In this case, an operation input from the user is accepted (step S302), and it is determined whether or not a predetermined operation for ending the navigation process has been performed (step S303). When it is determined in the determination process in step S303 that a predetermined operation for ending the navigation process has been performed, the control unit 102 proceeds to the process in step S137 in FIG.

  In this case, the control unit 102 performs a predetermined end process (step S137), and ends the navigation process of another example including FIG. 8, FIG. 14, and FIG. If it is determined in step S303 that the operation for ending the navigation process has not been performed, the process from step S301 is repeated to continue the navigation process. A determination process of whether or not is performed.

  Also, it is assumed that in the determination process in step S301, it is determined that the user who has the mobile terminal 1 is in a trained state while traveling. In this case, the control unit 102 monitors the detection output of the activated acceleration sensor and waits for the traveling train on which the vehicle is riding to stop (steps S304 to S306). Of course, the traveling train that is on board stops, although it may stop between stations due to the influence of timetable disruption, etc., mainly when it arrives at the stop station. For this reason, in order to determine arrival at the stop station, it is determined whether or not the train on which the boarding is stopped.

  Then, in the determination process in step S304, it is determined that the running train on which the user carrying the mobile terminal 1 is not yet stopped. In this case, an operation input from the user is accepted (step S305), and it is determined whether or not a predetermined operation for ending the navigation process has been performed (step S306). When it is determined in the determination process in step S306 that a predetermined operation for ending the navigation process has been performed, the control unit 102 proceeds to the process in step S137 in FIG.

  In this case, the control unit 102 performs a predetermined end process (step S137), and ends the navigation process of another example including FIG. 8, FIG. 14, and FIG. If it is determined in step S306 that the operation for ending the navigation process has not been performed, the process from step S304 is repeated to continue the navigation process. A determination process of whether or not is performed.

  Then, in the determination process in step S304, it is determined that the traveling train on which the vehicle is traveling has stopped. In this case, the control unit 102 starts the WiFi scan process through the wireless LAN antenna 107A and the wireless LAN unit 107 (step S307). That is, the control unit 102 controls the wireless LAN unit 107, receives a transmission signal from a surrounding WiFi standard AP, extracts an SSID, and detects reception intensity.

  As described above, since the WiFi data (SSID and reception intensity) can be acquired by starting the WiFi scan process in step S307, the control unit 102 notifies the acquired one or more corresponding SSID and reception intensity. It supplies to the formation part 114. Accordingly, the notification information Pb transmitted from the portable terminal 1 to the server 3 by the notification information transmission processing started in step S115 of FIG. 8 includes one or more WiFi data as shown in FIG. Will be. And in the server 3, the boarding position in the train which is riding in the stop station of the portable terminal 1 which is the notification origin of the said notification information Pb can be specified. This boarding position specifying method will be described in the processing of the server 3 to be described later.

  And the control part 102 discriminate | determines whether the stop position is an alighting station on the searched route (step S308). This determination process can be determined based on the map information and information indicating the current position specified by the server 3 using WiFi data. If it is determined in the determination process of step S308 that the target getting-off station is not on the searched route, the WiFi scan started in step S307 is terminated, and the navigation process is continued, and the process from step S301 is performed. repeat.

  Further, it is assumed that the control unit 302 determines that it has been determined that the vehicle has arrived at the getting-off station in the determination process in step S308. In this case, as in the case of the process shown in FIG. 9, it is determined whether or not the station is a transfer station on the searched route (step S127). The subsequent processing is the same as the processing shown in FIGS.

  As described above, in the case of the route search and navigation processing shown in FIGS. 8, 14, and 10, the WiFi scan is performed at each stop station before the getting-off station, and the result is included in the notification information Pb. 3 can be notified. By doing so, as described later, the server 3 identifies the boarding position on the train on which the user of the mobile terminal 1 is riding at a predetermined stop station, and based on the identified boarding position. In advance, the alighting position on the disembarking platform at the disembarking station is specified in advance. And based on the alighting position in the disembarking station grasped in advance, the navigation processing can be quickly and appropriately performed immediately after the user disembarks at the disembarking station.

[Another example of navigation support processing performed by the server 3]
FIG. 15 is a flowchart for explaining a main part of another example of the navigation support process performed by the server 3. The processing of this example executed by the server 3 is the same as the processing of steps S215 to S216 shown in FIG. 13 in the navigation support processing described above with reference to FIGS. It has changed. Therefore, the process shown in FIG. 12 is executed in the same manner in other examples. In this other example, as shown in FIG. 15, the control unit 302 of the server 3 determines whether or not WiFi data is included in the received notification information Pb from the mobile terminal 1 (step S214). ), It is determined that WiFi data is included.

  In this case, in this case, the control unit 302 sets the boarding position on the train on which the user is riding, such as the station two stops before the getting-off station on the route. It is determined whether or not the station is a predetermined station (step S401). Specifically, in step S401, the control unit 302 controls the WiFi check unit 311 and refers to the WiFi map DB 307 based on the SSID of the WiFi data included in the notification information, and the station where the AP identified by the SSID is installed. Whether or not is a predetermined station.

  Assume that in the determination process in step S401, it is determined that the stop station of the train on which the user carrying the mobile terminal 1 is a predetermined station. In this case, the control unit 302 controls the WiFi check unit 311 to execute a process of specifying the boarding position on the train on which the user carrying the mobile terminal 1 is boarding (step S402). That is, the stop position of the train at the stop station is determined in advance, and the number of train cars is also determined in advance. Therefore, the WiFi check unit 311 is information included in the notification information Pb from the mobile terminal 1 and is based on WiFi data that is information according to the reception status of the transmission signal from the WiFi standard AP at the stop station. Refer to the WiFi map DB 307.

  As a result, the WiFi check unit 311 can identify the location of the mobile terminal 1 at the stop of the train on which the user carrying the mobile terminal 1 rides. The location of the specified stop station is replaced with the position on the train stopped at the stop station. As a result, the user who owns the mobile terminal 1 is in the vicinity of the second door, the fourth door, and the user's boarding position on the train on which the user who owns the mobile terminal 1 is on (mobile terminal) 1 location) can be specified.

  If the user's boarding position on the train on which the user carrying the mobile terminal 1 is riding can be specified, the user's getting-off position on the getting-off platform of the getting-off station on the searched route can be specified accurately. As described above, since the stop position of the train at the disembarking station and the number of vehicles on the train are known in advance, by replacing this with the position of the disembarking station platform, the user of the disembarking station exit platform The getting-off position (location) can also be specified.

  Then, after the process of step S402, the process from step S218 of the process described with reference to FIG. 13 is performed. Further, it is assumed that in the determination process in step S401, it is determined that the stop station of the train on which the user carrying the mobile terminal 1 is not a predetermined station. In this case, the control unit 302 determines whether or not the station on which the train on which the user carrying the mobile terminal 1 rides is the exit station on which the user on the searched route should get off the train (step S403).

  Assume that it is determined in step S403 that the station is a disembarking station. In this case, the control unit 302 forms guide information Gd on the platform according to the boarding position of the user who has the mobile terminal 1 identified in step S402 and the searched route (step S404). That is, in step S404, the control unit 302 determines the location of the user on the getting-off platform at the getting-off station according to the boarding position on the train of the user who owns the mobile terminal 1 and the map information of the getting-off station portion. Identify. Then, in accordance with the searched route, on the platform, the destination is specified, and guidance information Gd for instructing the direction of the movement to the user of the mobile terminal 1 is formed.

  Then, the control unit 302 transmits the guidance message formed in step S404 to the network 2 through the communication I / F 301 and transmits it to the mobile terminal 1 (step S405). Thereby, in the portable terminal 1 that has received the guidance message, it is possible to perform navigation by indicating the direction to proceed immediately on the platform to the user who has landed on the platform of getting off at the getting-off station. .

  Then, after the transmission processing of the guidance information Gd in step S405 and when it is determined in step S402 that the station where the train has stopped is not a disembarking station, the processing from step S217 is performed as in the case of the processing shown in FIG. Is done.

  Thus, in the case of this other example, in the portable terminal 1, the acceleration sensor is moved when the train route is reached. When it is determined from the detection output of the acceleration sensor that the train on board has stopped, a WiFi scan is executed to obtain the SSID of the AP that is transmitting the transmission signal and the reception intensity of the received transmission signal. The server 3 is used as data. The server 3 determines the stop station based on the WiFi data from the mobile terminal 1, and if the server 3 detects that it has reached a predetermined station such as a stop station two stations before the disembarking station, The boarding position is identified based on the data in the WiFi map DB 307. Then, the information is used to identify the position of getting off at the getting-off platform of the getting-off station, and when it arrives at the getting-off station (including the transfer station), the moving direction can be guided immediately.

[Effect of the embodiment]
As described above, during the execution of the navigation function, the notification information Pb periodically updated from the portable terminal 1 to the server 3 is also added with the result of the WiFi scan. Since the platform of the train station is long and narrow, the WiFi data (SSID and reception strength) of the AP appearing at the exit and the transfer platform is uploaded to the server 3 in order. Then, by analyzing the WiFi data in the server 3, a WiFi map indicating where and from which reception signal from which AP can be received on the station platform is created.

  In order to trace the searched route against the WiFi map based on the obtained WiFi data, a WiFi scan is executed at the point where the train is exited or the train stops. You will be able to guide you properly. Accordingly, it is possible to appropriately perform guidance (navigation) at the getting-off platform of a station, which has not been able to provide sufficient guidance (navigation) because it has been impossible to specify an accurate location.

  In other words, it is possible to provide a navigation service that does not cause inconveniences such as mistaken train transfers or wrong ticket gates. That is, even when navigation including a train route is performed, it is possible to provide an unprecedented accurate navigation service capable of providing appropriate guidance on the platform.

[Modifications, etc.]
In the above-described embodiment, the case where the WiFi data is used for navigation at the getting-off station has been described. However, the present invention is not limited to this. When transferring at a terminal station or the like, navigation processing in the station premises using WiFi data can also be performed. In this case, a WiFi map in the terminal station should be maintained. In addition, on the boarding platform, it is possible to guide the boarding position of the reserved seat vehicle or to guide the boarding position of the unreserved seat vehicle.

  Also, even if the WiFi standard AP is not an AP that can be actually connected, it is only necessary to be able to detect the SSID and the reception intensity from the transmission signal, and therefore, a wide variety of installed APs can be used.

  In the above-described embodiment, whether or not the train station has been reached is determined based on the current position measured through the GPS unit and the map information, but is not limited thereto. For example, it may go to the boarding station through an underground shopping mall, and in this case, the current position may not be determined by GPS.

  Therefore, when the current position cannot be determined by GPS, so-called three-point surveying is performed based on the communication status with three or more base stations in the vicinity of the mobile phone network that performs communication through the transmitting / receiving antenna 101A and the wireless communication unit 101. A method of specifying the current position based on the principle described above may be used. When the current position cannot be measured by GPS, the wireless LAN unit 107 is made to function, and the server 3 is operated in the same manner as in the above-described embodiment according to the reception status of the transmission signal from the neighboring AP. In this case, the current position of the mobile terminal 1 may be specified.

  In the above-described embodiment, the description has been made on the assumption that the AP of the WiFi standard, which has begun to spread widely, is used. However, the present invention is not limited to this. When the communication area using various short-range communication technologies has expanded, the above-described implementation is performed using communication with the base station when performing communication using various short-range communication technologies. It is also possible to perform the same processing as in the case of the form. That is, the communication standard to be used is not limited to the WiFi standard.

[Others]
As can be seen from the above description of the embodiment, the storage unit function of the navigation device is realized by the WiFi map DB 307 of the server 3, and the reception unit functions are the wireless LAN antenna 107 </ b> A of the mobile terminal 1 and the wireless device 1. The LAN unit 107 is realized. In addition, the functions of the extraction unit and the detection unit of the navigation device are realized by the cooperation of the wireless LAN unit 107 and the control unit 102 of the mobile terminal 1. In addition, the function of the specifying unit of the navigation device is realized by the WiFi check unit 311 of the server 3, and the function of the instruction unit is realized mainly by the control unit 302 of the server 3.

  The function of the current position positioning means of the navigation device is realized by the GPS antenna 108A and the GPS unit 108 of the portable terminal 1, and the function of the detecting means is realized by the sensor unit 106 of the portable terminal 1.

  8 to 10, the processes described using the flowcharts of FIGS. 12 and 13, and the processes described using the flowcharts of FIGS. 14 and 15 are one of the navigation methods of the present invention. This corresponds to the embodiment. A program for executing processing according to the flowcharts of FIGS. 8 to 10 and a program for executing processing that uses the flowchart of FIG. 14 instead of FIG. 9 of the flowcharts of FIGS. This corresponds to an embodiment of the navigation information acquisition program. A program for executing processing according to the flowcharts of FIGS. 12 and 13 and a program for executing processing according to the flowcharts of FIGS. 12 and 15 correspond to an embodiment of the navigation information providing program of the present invention. doing.

  DESCRIPTION OF SYMBOLS 1 ... Portable terminal, 101A ... Transmission / reception antenna, 101 ... Wireless communication part, 102 ... Control part, 103 ... Memory | storage device, 104 ... Operation part, 105 ... Time control part, 106 ... Sensor part, 107 ... Wireless LAN part, 107A ... Wireless LAN antenna 108 ... GPS unit 108A ... GPS antenna 109 ... display unit 110 ... touch panel 111 ... sound output unit 112 ... speaker 113 ... navigation processing unit 114 ... notification information forming unit 2 ... network DESCRIPTION OF SYMBOLS 3 ... Navigation server apparatus, 301 ... Communication I / F, 302 ... Control part, 303 ... Memory | storage device, 304 ... Map DB, 305 ... Train network DB, 306 ... AP management DB, 307 ... WiFi map DB, 308 ... Pedestrian Network DB, 309 ... display unit, 310 ... map providing unit, 311 ... WiFi check Wards, 312 ... notification information file, 313 ... WiFi map generation unit

Claims (10)

Identification information of each base station in the local area network capable of wireless communication, the area where the transmission signal can be received from each base station, and the reception strength of the transmission signal from each base station for each railway station platform Storage means for storing base station map information associated with
Receiving means for receiving a transmission signal from each base station of the local area network;
Current position positioning means for measuring the current position;
Whether or not the on-board train is running when it is detected that the route is a travel route based on the current position measured by the current position positioning means and the route information obtained as a result of the route search. Detecting means for detecting
An extraction means for extracting the identification information of each base station from the transmission signal of each base station of the local area network received by the receiving means when it is detected that the train boarded through the detecting means has stopped ;
A detecting means for detecting the reception intensity of the transmission signal from each base station of the local area network received by the receiving means when detecting that the train boarded through the detecting means has stopped ;
Based on the identification information of each base station extracted by the extraction means and the reception strength of the transmission signal from each base station detected by the detection means, the base station map information of the storage means is referred to The location is a specific means for identifying which position of which platform of which station,
Wherein said location of its own specified by the specifying means, when it is determined that the destination station or transfer station on the route indicated in the route information, obtained as a result of the location and route search identified Navigation means comprising: specifying means for specifying and instructing a moving direction on the platform after getting off the train based on the route information. Identification information of each base station in the local area network capable of wireless communication, the area where the transmission signal can be received from each base station, and the reception strength of the transmission signal from each base station for each railway station platform Storage means for storing base station map information associated with
Receiving means for receiving a transmission signal from each base station of the local area network;
Current position positioning means for measuring the current position;
Whether or not the on-board train is running when it is detected that the route is a travel route based on the current position measured by the current position positioning means and the route information obtained as a result of the route search. Detecting means for detecting
An extraction means for extracting the identification information of each base station from the transmission signal of each base station of the local area network received by the receiving means when it is detected that the train boarded through the detecting means has stopped ;
A detecting means for detecting the reception intensity of the transmission signal from each base station of the local area network received by the receiving means when detecting that the train boarded through the detecting means has stopped ;
Based on the identification information of each base station extracted by the extraction means and the reception strength of the transmission signal from each base station detected by the detection means, the base station map information of the storage means is referred to It is possible to detect the location of which platform of which station, and the location of the aircraft is a station that is a predetermined number of stations at the exit station on the route indicated in the route information. A specific means for identifying the user's boarding position ,
Instructing means for specifying and instructing the moving direction on the platform of the disembarking station based on the boarding position of the user specified by the specifying means and the route information obtained as a result of the route search, Navigation device. The navigation device according to claim 1, wherein the server device and the mobile terminal are connected via a network,
The portable terminal is
The receiving means, the current position positioning means, the detection means, the extraction means and the detection means,
A terminal information transmitting means for transmitting said reception intensity of the transmitted signals from the base stations detected by said identification information and said detection means of each base station extracted by the extracting unit to the server device,
Instruction information receiving means for receiving information instructing the moving direction at the disembarking station transmitted from the server device;
Output means for outputting information indicating the received moving direction, and
The server device is
The storage means, the specifying means, and the instruction means,
Terminal information receiving means for receiving the identification information of each base station from the mobile terminal and the reception strength of the transmission signal from each base station;
Instruction information transmitting means for transmitting to the portable terminal information indicating the direction of movement on the platform after getting off the train specified by the instruction means ;
It said specifying means, on the basis of the identification information of each base station received through the terminal information receiving means and the reception intensity of the transmission signal from each base station, by referring to the base station map information of the storage means, location The location identifies which location on which platform at which station,
Said instructing means, the location of its own specified by the specifying means, when it is determined that the destination station or transfer station on the route indicated in the route information, the location and route identified A navigation device characterized in that, based on route information obtained as a result of the search, a movement direction on the platform after getting off the train is specified, and information indicating the movement direction is formed. The navigation device according to claim 2 , wherein the server device and the mobile terminal are connected through a network,
The portable terminal is
The receiving means, the current position positioning means, the detection means, the extraction means and the detection means,
Terminal information transmission means for transmitting to the server device the identification information of each base station extracted by the extraction means and the reception intensity of the transmission signal from each base station detected by the detection means;
Instruction information receiving means for receiving information instructing the moving direction at the disembarking station transmitted from the server device;
Output means for outputting information indicating the received moving direction, and
The server device is
The storage means, the specifying means, and the instruction means,
Terminal information receiving means for receiving the identification information of each base station from the mobile terminal and the reception strength of the transmission signal from each base station;
An instruction information transmitting means for transmitting information indicating the direction of movement at the getting-off station to the portable terminal;
The specifying means refers to the base station map information in the storage means based on the identification information of each base station received through the terminal information receiving means and the reception strength of a transmission signal from each base station, and When the location of which platform of the station is specified and the location of the aircraft is detected to be a predetermined number of stations before the exit station on the route indicated in the route information, Which identifies the user ’s boarding position,
The instructing means specifies the moving direction according to the getting-off position on the platform of the getting-off station based on the boarding position of the user specified by the specifying means and the route information obtained as a result of the route search, and the moving A navigation apparatus characterized by forming information indicating a direction . For each railway station platform, the identification information of each base station of the local area network capable of wireless communication, the area where the transmission signal from each base station can be received, and the reception strength of the transmission signal from each base station A navigation method used in a navigation device provided with storage means for storing associated base station map information,
A receiving step for receiving a transmission signal from each base station of the local area network;
A current position positioning means for positioning the current position;
When the detection means detects that the route is a moving route on the train based on the current position measured in the current position positioning step and the route information obtained as a result of the route search, A detection process for detecting whether or not the vehicle is running;
In the detection step, when it is detected that the train on board has stopped, the extraction means extracts the identification information of each base station from the received transmission signal of each base station of the local area network; and
When it is detected that the train was riding through the detection means has stopped, a detection step of the detection means detects the reception strength of the transmission signals from each base station in the received local area network,
The specific means, on the basis of the detected and extracted the identification information of each base station and the reception intensity of the transmission signal from each base station, by referring to the base station map information of the storage means, location, how A specific process for identifying which platform on which station of the station,
Wherein the location of its own identified in a particular process, wherein when it is determined that the destination station or transfer station on the route indicated in the route information, indicating means, the location and results of route search identified A navigation method comprising: an instruction step of specifying and instructing a moving direction on the platform after getting off the train based on the obtained route information. For each railway station platform, the identification information of each base station of the local area network capable of wireless communication, the area where the transmission signal from each base station can be received, and the reception strength of the transmission signal from each base station A navigation method used in a navigation device provided with storage means for storing associated base station map information,
A receiving step for receiving a transmission signal from each base station of the local area network;
A current position positioning means for positioning the current position;
When the detection means detects that the route is a moving route on the train based on the current position measured in the current position positioning step and the route information obtained as a result of the route search, A detection process for detecting whether or not the vehicle is running;
In the detection step, the extraction means extracts the identification information of each base station from the transmission signal of each base station of the received local area network when it is detected that the boarded train stops.
A detecting step for detecting the reception intensity of the transmission signal from each base station of the received local area network when the detecting means detects that the train on which the vehicle has been boarded stops through the detecting means;
The specifying means refers to the base station map information of the storage means based on the extracted identification information of each base station and the detected reception strength of the transmission signal from each base station, and the location is , Which platform of which station of which station is specified, and when it is detected that the location of the own aircraft is a station that is a predetermined number of disembarking stations on the route indicated in the route information, A specific process for identifying the user's boarding position;
An instruction step for specifying and instructing a moving direction on the platform of the disembarking station based on the boarding position of the user specified in the specifying step and the route information obtained as a result of the route search;
A navigation method. A program executed by a computer mounted on the portable terminal of a navigation device configured by connecting a server device and a portable terminal through a network,
For each platform at each railway station, the server device identifies each base station in the local area network capable of wireless communication, an area where a transmission signal can be received from each base station, and a transmission from each base station. Storage means for storing base station map information in association with signal reception strength, and terminal information reception means for receiving the identification information of each base station from the mobile terminal and the reception strength of a transmission signal from each base station And the base station map information of the storage means based on the identification information of each base station received by the terminal information receiving means and the detected reception strength of the transmission signal from each base station. The location is specified by specifying means for specifying which platform of which station at which station, and the location of the own aircraft specified by the specifying means is indicated in the route information. When it is determined that the station is an above-mentioned getting-off station or transfer station, the moving direction on the platform after getting off the train is specified based on the specified location and the route information obtained as a result of the route search. Instruction means for instructing, and instruction information transmission means for transmitting to the portable terminal information for instructing the moving direction at the disembarking station specified by the instruction means,
A reception step of receiving a transmission signal from each base station of the local area network;
A current position positioning means for positioning the current position;
Based on the current position measured in the current position positioning step and the route information obtained as a result of the route search, when the detection means detects that it has become a moving route by train, the detection means A detection step for detecting whether or not the vehicle is running;
In the detection step, when it is detected that the train on board has stopped, the extraction unit extracts the identification information of each base station from the transmission signal of each base station of the local area network received in the reception step. Steps,
In the detection step, when detecting that the train on board has stopped, the detection means detects the reception intensity of the transmission signal from each base station of the local area network received in the reception step;
A terminal information transmission means for transmitting the identification information of each base station extracted in the extraction step and the reception strength of the transmission signal from each base station detected in the detection step to the server device;
An instruction information receiving unit is configured to receive an instruction information receiving step of receiving information instructing a moving direction at a disembarking station transmitted from the server device;
An output means executes an output step of outputting received information indicating the moving direction . A program executed by a computer installed in the server device of a navigation device configured by connecting a server device and a mobile terminal through a network,
The portable terminal includes a receiving means for receiving a transmission signal from each base station of a local area network, a current position positioning means for measuring a current position, a current position measured by the current position positioning means, and a route search result. Based on the obtained route information, when it is detected that it has become a travel route by train, a detection means for detecting whether the train being boarded is running or not, and When it is detected that the vehicle has stopped, the extraction means for extracting the identification information of each base station from the transmission signal of each base station of the local area network received by the reception means, and the train Detecting means for detecting the reception intensity of the transmission signal from each base station of the local area network received by the receiving means when detecting that the vehicle has stopped, Terminal information transmitting means for transmitting the identification information of each base station extracted by the extracting means and the reception strength of the transmission signal from each base station detected by the detecting means to the server apparatus, and from the server apparatus An instruction information receiving means for receiving information indicating the direction of movement at the disembarking station that is transmitted, and an output means for outputting the information indicating the direction of movement received,
The server device includes, for each platform at each railway station, identification information of each base station of a local area network capable of wireless communication, an area where a transmission signal can be received from each base station, and each base station. Storage means for storing base station map information associated with the reception strength of the transmission signal;
A terminal information receiving means for receiving the identification information of each base station from the mobile terminal and the reception strength of the transmission signal from each base station;
In the terminal information reception step, when receiving the identification information of each base station and the detected reception strength of the transmission signal from each base station, the specifying unit is based on the identification information and the reception strength. A step of referring to the base station map information of the storage means and specifying the location of which platform on which platform at which station;
When the instructing means determines that the location of the aircraft identified in the identifying step is an exit station or a transfer station on the route indicated in the route information, the identified location and route search Based on the route information obtained as a result, an instruction step for specifying and instructing the moving direction on the platform after getting off the train,
A navigation information providing program , wherein the instruction information transmitting means executes an instruction information transmitting step of transmitting information indicating the moving direction at the disembarking station specified in the instruction step to the portable terminal . A program executed by a computer mounted on the portable terminal of a navigation device configured by connecting a server device and a portable terminal through a network,
The server device includes, for each platform at each railway station, identification information of each base station of a local area network capable of wireless communication, an area where a transmission signal can be received from each base station, and each base station. Storage means for storing base station map information that associates the reception strength of the transmission signal, and terminal information for receiving the identification information of each base station from the mobile terminal and the reception strength of the transmission signal from each base station Refer to the base station map information of the storage means based on the receiving means, the identification information of each base station received through the terminal information receiving means, and the received strength of the detected transmission signal from each base station And a specifying means for specifying the user's boarding position when it is detected that the current position of the own aircraft is a station a predetermined number of stations at the getting-off station on the route indicated in the route information. An instruction means for specifying and instructing a moving direction according to the getting-off position on the platform of the getting-off station based on the boarding position of the user specified by the specifying means and the route information obtained as a result of the route search; An instruction information transmitting means for transmitting information indicating the moving direction at the disembarking station specified by the instruction means to the portable terminal,
A reception step of receiving a transmission signal from each base station of the local area network;
A current position positioning means for positioning the current position;
When the detection means detects that the route is a travel route on the train based on the current position measured in the current position positioning step and the route information obtained as a result of the route search, the on-board train travels. A detection step for detecting whether or not
An extraction step for extracting the identification information of each base station from the transmission signal of each base station of the local area network received in the reception step when it is detected that the train boarded through the detection step has stopped. When,
When detecting that the train on board through the detection step has stopped, the detection means detects the reception intensity of the transmission signal from each base station of the local area network received in the reception step;
A terminal information transmission step in which terminal information transmission means transmits the identification information of each base station extracted in the extraction step and the reception strength of the transmission signal from each base station detected in the detection step to the server device; ,
An instruction information receiving unit is configured to receive an instruction information receiving step of receiving information instructing a moving direction at a disembarking station transmitted from the server device;
An output step of outputting information indicating the moving direction received in the instruction information receiving step;
The navigation information acquisition program characterized by performing this. A program executed by a computer installed in the server device of a navigation device configured by connecting a server device and a mobile terminal through a network,
The portable terminal includes a receiving means for receiving a transmission signal from each base station of a local area network, a current position positioning means for measuring a current position, a current position measured by the current position positioning means, and a route search result. Based on the obtained route information, when it is detected that the route is a moving route by train, a detection unit that detects whether or not the train on board is running, and a train that has boarded through the detection unit When it is detected that the vehicle has stopped, an extraction unit that extracts the identification information of each base station from the transmission signal of each base station of the local area network received by the reception unit, and a train that has boarded through the detection unit stops. Detecting means for detecting the reception strength of the transmission signal from each base station of the local area network received by the receiving means, Terminal information transmitting means for transmitting the identification information of each base station extracted by the extracting means and the reception strength of the transmission signal from each base station detected by the detecting means to the server apparatus, and from the server apparatus An instruction information receiving means for receiving information indicating the direction of movement at the disembarking station that is transmitted, and an output means for outputting the information indicating the direction of movement received,
The server device includes, for each platform at each railway station, identification information of each base station of a local area network capable of wireless communication, an area where a transmission signal can be received from each base station, and each base station. Comprising storage means for storing base station map information associated with the reception strength of the transmission signal;
A terminal information receiving means for receiving the identification information of each base station from the mobile terminal and the reception strength of the transmission signal from each base station;
The specifying means refers to the base station map information of the storage means based on the identification information of each base station received through the terminal information receiving step and the received strength of the detected transmission signal from each base station. And a specific step of identifying the user's boarding position when it is detected that the current position of the own device is a station a predetermined number of stations before the getting-off station on the route indicated in the route information;
An instruction means for specifying and instructing a moving direction according to the getting-off position on the platform of the getting-off station based on the boarding position of the user specified in the specifying step and the route information obtained as a result of the route search Steps,
An instruction information transmitting means for transmitting, to the portable terminal, information indicating the direction of movement at the dismounting station specified in the instruction step;
A navigation information providing program characterized by executing

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