JP2013207573A - Portable terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal device in which a position can be easily displayed on a deformed map by identifying an exact position even in an environment where a GPS signal is unlikely to be received such as inside of a train traveling on the ground or a GPS signal cannot be received such as in a subway.SOLUTION: In a ticket examination gate, a station code and a route code of a non-contact IC card system are acquired, a station where a user gets on a train is identified on the basis of the acquired station code, and a route to be utilized is identified on the basis of the acquired route code. Furthermore, on the basis of inbound/outbound direction data indicating a traveling direction of an inbound/outbound line for each retained route, whether the user is utilizing an inbound line or an outbound line is identified using measured acceleration and geomagnetism, and a route map of the route being utilized is displayed on the basis of information about the identified station where the user gets on the train, the route being utilized and whether the user is utilizing the inbound line or the outbound line.

Description

  The present invention relates to a portable terminal device having a navigation function.

  A mobile terminal device such as a mobile phone or a smartphone can be used as a navigation device by acquiring a navigation application. Some portable terminal devices are equipped with a GPS receiver, and if it is in a place where GPS signals can be received, it is possible to grasp a certain position even if it is on a train traveling on the ground.

  As a technique relevant to the present invention, for example, there are those described in Patent Documents 1 to 4. The position specifying device described in Patent Document 1 determines the walking behavior of a pedestrian based on data obtained from a distance sensor, an orientation sensor, and an altitude sensor, and further, the walking behavior of the pedestrian and the travel time or vibration characteristics. Based on the above, it is determined whether or not the pedestrian has taken a transportation means such as a subway, and the pedestrian is based on the elapsed time from the time when the pedestrian gets on the transportation means and the required time between stations of the transportation system. Specify the position of.

  The position specifying device described in Patent Document 2 determines a walking behavior of a pedestrian based on data obtained from a distance sensor, an orientation sensor, and an altitude sensor, and obtains an estimated position on the map of the pedestrian. An error range of the estimated position is obtained, and if there is a feature point related to the walking behavior within the error range of the estimated position, the feature point is specified as the position of the pedestrian.

  The mobile device described in Patent Document 3 uses an acceleration sensor to detect a predetermined acceleration applied to the entire mobile device, thereby counting the stopped stations and predicting arrival at the planned departure station in advance. The portable route guidance device described in Patent Document 4 recognizes the departure melody and station name announcement in the station premises, and the in-car announcement in the train with the voice recognition device, and recognizes the current traveling position and traveling state.

JP 2009-210473 A JP 2009-229204 A JP 2009-300215 A JP 2010-083378 A

  When using a smartphone as a navigation device, as described above, the position can be specified in an environment where GPS signals can be received, but it is difficult to receive GPS signals such as in trains traveling on the ground, or GPS signals such as subways. There is a problem that an accurate position cannot be specified in an environment where reception is not possible. In addition, there is a problem that it is difficult to display a position on a deformed map unless an accurate position can be specified.

  In the position specifying device described in Patent Document 1 described above, it is possible to determine that a train has been boarded, but it is difficult to determine from which station the subway or the like where position specification is difficult is located. In addition, when the position is specified by the boarding time, it is difficult to specify the position when an emergency stop is caused by a failure or the like.

  In the position specifying device described in Patent Document 2, since there is no means for determining whether it is a boarding station or an up / down train, it is difficult to specify a route map. Also, if an emergency stop or slow drive occurs, the wrong position is displayed.

  In the mobile device described in Patent Literature 3, there is a possibility that the position cannot be specified when an emergency stop or when passing through a station by express or the like.

  In the portable route guidance device described in Patent Document 4, it can be surely recognized in a station premises or in a vehicle where noise is intense, but it is unclear, and there is a possibility that it may be mistakenly recognized when the melody or the like changes.

  The present invention has been made in view of such circumstances, and it is possible to specify an accurate position even in an environment where it is difficult to receive a GPS signal such as in a train traveling on the ground or an environment where a GPS signal such as a subway cannot be received. An object of the present invention is to provide a portable terminal device that can easily display a position on a deformed map.

  The portable terminal device of the present invention specifies a station / route code acquisition unit that acquires a station code and route code of a contactless IC card system, and a boarding station based on the station code acquired by the station / route code acquisition unit. Boarding station specifying unit, boarding route specifying unit for specifying a boarding route based on the route code acquired by the station / route code acquiring unit, and upper and lower line direction data indicating the traveling direction of the upper and lower lines for each route A line direction data holding unit and an up / down line specifying unit for specifying which of the up and down lines is boarded using an acceleration sensor and a geomagnetic sensor based on the up / down line direction data held in the up / down line direction data holding unit And a boarding station specified by the boarding station specifying unit, a boarding route specified by the boarding route specifying unit, and an information on whether the user has boarded the vertical line specified by the vertical line specifying unit. A display unit for displaying a route map can ride routes, with a.

  According to the above configuration, the station code and route code of the contactless IC card system are acquired at the ticket gate, the boarding station is specified based on the acquired station code, and the boarding route is specified based on the acquired route code. In addition, based on the vertical line direction data indicating the traveling direction of each vertical line for each route that is held, using the acceleration sensor and the geomagnetic sensor, it is specified which of the vertical line was boarded, the specified boarding station, boarding Since the route map of the boarding route is displayed based on information on which of the route and the upper and lower lines, the environment where it is difficult to receive GPS signals such as in a train traveling on the ground, or the environment where GPS signals such as subways cannot be received However, since an accurate position can be specified, the position display on the deformed map becomes easy.

  In the above configuration, the inter-station distance data holding unit that holds the inter-station distance data for each route, the speed calculating unit that calculates the train speed from the output of the acceleration sensor, the boarding time measuring unit that measures the boarding time, The distance of the traveled distance is calculated from the inter-station distance data held in the inter-station distance data holding unit, the train speed calculated by the speed calculation unit, and the travel distance calculated from the boarding time measured by the boarding time measurement unit. A train position specifying unit that determines a train position by obtaining a ratio, and displays the train position specified by the train position specifying unit on the route map displayed on the display unit.

  According to the above configuration, the train speed is calculated from the output of the acceleration sensor, the boarding time is measured, the travel distance is calculated from the calculated train speed and the boarding time, the ratio of the traveled distance is obtained, and the train position is specified. And since the specified train position is displayed on the route map, it is possible to provide guidance for prompting the user to get off when approaching the getting-off station.

  According to the present invention, it is possible to specify an accurate position even in an environment where it is difficult to receive a GPS signal such as in a train traveling on the ground, or an environment where a GPS signal such as a subway cannot be received, and on a deformed map The position can be displayed easily.

The block diagram which shows schematic structure of the portable terminal device which concerns on one embodiment of this invention The figure which shows an example of the station / route code, the data classified by route, and the data classified by station held in the memory | storage part of the portable terminal device of FIG. The figure for demonstrating how to obtain | require the moving direction of the portable terminal device of FIG. The figure which shows an example of the change of the acceleration when getting on the train The figure which shows an example of the route map displayed on the display part of the portable terminal device of FIG. The flowchart which shows the route map specific process of the portable terminal device of FIG. The flowchart which shows the boarding route determination process of the portable terminal device of FIG. The flowchart which shows the up-and-down line determination process of the portable terminal device of FIG. The flowchart which shows the position specific process of the portable terminal device of FIG. The flowchart which shows the station stop determination process of the portable terminal device of FIG.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a schematic configuration of a mobile terminal device according to an embodiment of the present invention. In the figure, a mobile terminal device 1 according to the present embodiment includes a measurement unit 2, a station / route code acquisition unit 3, a storage unit (vertical line direction data holding unit, inter-station distance data holding unit) 4, a processing unit. 5, the display part 6, the audio | voice output part 7, and the operation part 8 are provided. The measurement unit 2 includes an acceleration sensor 20, a geomagnetic sensor 21, an atmospheric pressure sensor 22, and a GPS (Global Positioning System) receiver 23. The measurement unit 2 detects the acceleration applied to the mobile terminal device 1 and its direction (acceleration direction) from the output of the acceleration sensor 20. The measuring unit 2 detects the orientation of the mobile terminal device 1 from the output of the geomagnetic sensor 21. The measuring unit 2 detects the atmospheric pressure from the output of the atmospheric pressure sensor 22. The measuring unit 2 acquires position information from the GPS signal received by the GPS receiver 23.

  The station / route code acquisition unit 3 acquires a station code and a route code from a contactless IC card system (not shown) via a contactless card reader 100 installed at a ticket gate of the station. The storage unit 4 has a nonvolatile memory such as a flash memory, and stores a station code, a route code, route-specific data, and station-specific data. In this case, the route-specific data and the station-specific data are data that the mobile terminal device 1 has in advance, and the station code and the route code are data acquired by the station / route code acquisition unit 3 when passing through the ticket gate. . The station-specific data includes time data, hierarchical data, and vertical line direction data.

  FIG. 2 is a diagram illustrating an example of a station code, a route code, route-specific data, and station-specific data, where (a) is a station code, (b) is a route code, (c) is route-specific data, and (d). Is time data of station-specific data, (e) is hierarchical data of station-specific data, and (f) is vertical line direction data of station-specific data. The route-specific data in (c) is composed of four types of data: “station name”, “distance between stations (km)”, “required time (minutes)”, and “presence of express stop”. The time data of the station-specific data in (d) is composed of two data of “departure time (hour, minute)” and “type (each station, express, semi-express)” for each station. The hierarchical data of the station-specific data in (e) is composed of two data of “floor (for example, B2, B3)” and “route (for example, Chiyoda Line, Tozai Line)”. The vertical direction data of the station-specific data in (f) is 3 for "route (for example, Chiyoda Line, Tozai Line)", "downward and upward" and "travel direction (for example, northwest, southeast, south, north)". Consists of two data.

  As described above, the mobile terminal device 1 has data for each route (distance and required time between stations) and time data for each station in advance. A station having a plurality of routes also has data on the relationship between routes and levels. In addition, it also has direction data of up and down lines.

  Returning to FIG. 1, the processing unit 5 includes a boarding level determination unit 511, a traveling direction determination unit 512, a boarding determination unit 513, a travel / stop determination unit 514, a speed calculation unit 515, a boarding time measurement unit 516, and a door opening / closing determination unit 517. Information calculation unit 51, boarding station specifying unit 521, boarding route specifying unit 522, up and down line specifying unit 523, boarding train specifying unit 524, train position specifying unit 525, station stop specifying unit 526, getting-off guidance processing unit 527, And a route map processing unit 52 including a user input correction unit 528 and a display processing unit 529. For example, a CPU (Central Processing Unit) is used for the processing unit 5.

  The boarding hierarchy determination unit 511 determines the boarding hierarchy based on the atmospheric pressure measured by the measurement unit 2. The traveling direction determination unit 512 determines the traveling direction of the train based on the acceleration applied to the mobile terminal device 1 measured by the measurement unit 2 and the direction of the mobile terminal device 1 measured by the measurement unit 2. Here, with reference to FIG. 3, how to obtain the moving direction of the mobile terminal device 1 for determining the traveling direction of the train will be described. As shown to (a) of the figure, let the transversal direction of the portable terminal device 1 which made the whole shape a rectangle be X direction, let a longitudinal direction be a Y direction, and let thickness direction be a Z direction. The moving direction of the mobile terminal device 1 can be obtained through the following steps.

(Process 1) The north direction is determined from the output of the geomagnetic sensor 21.
(Step 2) The direction of the ground is determined from the output of the acceleration sensor 20. That is, the ground direction is grasped by detecting the direction in which the gravitational acceleration (9.8 m / s ² ) is applied when in a stationary state.

(Step 3) Based on the results of (Step 1) and (Step 2), the position of the mobile terminal device 1 in the space is determined.
Example) The geomagnetic sensor 21 determines that + Z is in the north direction.
The acceleration sensor 20 determines that + X is the ground direction. The spatial position of the mobile terminal device 1 in this example is as shown in FIG.

(Step 4) The moving direction is determined using the acceleration sensor 20.
Example) When the movement (acceleration) in the + Y direction is detected by the acceleration sensor 20, since the spatial position of the mobile terminal device 1 can be specified in (Step 3), the mobile terminal device 1 has moved in the east direction. I understand.

  Returning to FIG. 1, the boarding determination unit 513 determines the user's boarding based on the acceleration applied to the mobile terminal device 1 measured by the measurement unit 2. That is, the boarding determination unit 513 determines that the user has boarded when detecting a change in acceleration different from normal walking after the ticket gate passage determination. The travel / stop determination unit 514 determines the travel / stop of the train based on the acceleration applied to the mobile terminal device 1 measured by the measurement unit 2. FIG. 4 is a diagram illustrating an example of a change in acceleration when the user gets on the train. As shown in the figure, when the train departs, the magnitude of acceleration temporarily increases in the positive direction, and when the train stops, the magnitude of acceleration temporarily increases in the negative direction. . Thus, it is possible to determine whether the train is running or stopped from the direction of the magnitude of acceleration.

  Returning to FIG. 1, the speed calculation unit 515 calculates the train speed based on the acceleration applied to the mobile terminal device 1 measured by the measurement unit 2 and the boarding time measured by the boarding time measurement unit 516. The boarding time measuring unit 516 measures the boarding time of the train from when the boarding is made based on the acceleration applied to the mobile terminal device 1 measured by the measuring unit 2. If there is a change in acceleration that is different from normal walking after the ticket gate passage determination, since it is determined that the user has boarded, measurement of the boarding time is started from the time when it is determined that the user has boarded.

  The boarding station identification unit 521 identifies the boarding station based on the station code acquired by the station / route code acquisition unit 3. The boarding route specifying unit 522 specifies the boarding route based on the route code acquired by the station / route code acquisition unit 3. In addition, when a plurality of routes exist in the same station, the user may select a candidate. In the case of a subway, the route is often different depending on the level. The route may be specified by route data for each hierarchy. Further, if each route is traveling in a different direction, the route may be specified from the direction data of the traveling direction and the vertical line.

  Based on the vertical line direction data held in the storage unit 4 and the traveling direction determined by the traveling direction determination unit 512, the vertical line specifying unit 523 gets on either of the vertical lines. Identify what happened. The boarding train specifying unit 524 specifies the boarding train based on the determination result in the boarding determination unit 513 and the time data held in the storage unit 4. The train position specifying unit 525 calculates a travel distance from the speed calculated by the speed calculating unit 515 and the boarding time measured by the boarding time measuring unit 516 for the boarding train specified by the boarding train specifying unit 524, The ratio of the traveled distance is obtained from the travel distance and the inter-station distance data of the route-specific data held in the storage unit 4, and the position on the route map is specified. In addition, when a boarding train is an express etc. and there is a passing station, it is good to calculate the distance between stations in consideration of a passing station by the passing station information of route map data. By specifying the position based on the moving distance obtained from the speed and time, the position can be specified accurately even when the vehicle stops between stations due to a failure or the like, or when it takes a long time for slow driving or the like.

The door open / close determination unit 517 determines whether the door is open or closed based on the atmospheric pressure measured by the measurement unit 2.
The station stop specifying unit 526 specifies a station stop based on the stop information obtained by determination by the travel / stop determination unit 514 and the door opening / closing information obtained by determination by the door opening / closing determination unit 517. When it is determined that the vehicle has stopped, it is difficult to determine whether it is a stop at the station or an emergency stop. In this way, by determining whether the door is opened or closed, it is possible to easily determine whether the stop is at the station or the emergency stop.
By specifying the station stop, position correction is applied to the train position specifying unit 525. That is, a correction is applied to the nearest station from the current position. In this case, if the stop of the station can be detected accurately, the position is calculated from there again, so that there is no accumulated error and accurate position calculation is possible. In addition, when specifying a present position only by the frequency | count of a stop of a station, it is only necessary to perform the process of a station stop specific | specification part 526, without performing the process of the train position specific | specification part 525. However, in this case, it is a condition that the boarding train specifying unit 524 and the user input correcting unit 528 know the stop station information of the train on which the boarding is performed.

  The getting-off guidance processing unit 527 obtains getting-off information based on the boarding train data held in the storage unit 4 and the travel position specified by the train position specifying unit 525. By recognizing the position where the vehicle is traveling, when the station to get off is known in advance, for example, it is possible to provide guidance that prompts the user to get off at one station before, for example, one minute before the stop or before 2 km. The user input correction unit 528 inputs a user instruction from the operation unit 8. Although there is a possibility of erroneously recognizing the boarding train from the boarding time due to disturbance of the schedule, etc., it is possible to manually correct the boarding train in consideration of such a case.

  The display processing unit 529 includes the boarding station specified by the boarding station specifying unit 521, the boarding route specified by the boarding route specifying unit 522, the destination and type of the boarding train specified by the boarding train specifying unit 524 (normal, express, etc.) ), And a route map of the boarding route is created based on information on which of the up and down lines specified by the up and down line specifying unit 523 and displayed on the display unit 6.

  The display unit 6 displays the route map of the boarding route created by the display processing unit 529. FIG. 5 is a diagram illustrating an example of a route map displayed on the display unit 6. In the figure, ellipse marks indicated by reference numerals 10-1 to 10-8 indicate stations, and lines indicated by reference numerals 11-1 and 11-2 indicate routes. Reference numeral 12 indicates the current position. The route that has traveled is filled, and the tip position is the current position 12. Returning to FIG. 1, the audio output unit 7 outputs various information related to getting on and off the vehicle. The operation unit 8 performs operations for using the mobile terminal device 1 such as the candidate selection described above.

Next, the operation of the mobile terminal device 1 according to the present embodiment will be described.
FIG. 6 is a flowchart showing route map specifying processing of the mobile terminal device 1 according to the present embodiment. In the figure, the station / route code acquisition unit 3 determines whether or not it has passed the ticket gate (step S1). In this determination, if the ticket has not passed through the ticket gate (that is, if “No” is determined in the determination in step S1), the process is finished. On the other hand, when the ticket gate is passed (that is, when “Yes” is determined in the determination in step S1), the station code is acquired (step S2). That is, the station / route code acquisition unit 3 acquires the station code of the station that has passed the ticket gate from the contactless IC card system (not shown) via the contactless card reader 100 installed at the ticket gate of the station. In this case, when a plurality of routes exist at the same station, the route code is also acquired in addition to the station code. After the code is acquired by the station / route code acquisition unit 3, the boarding station specifying unit 521 specifies the boarding station from the station code (step S3). After the boarding station is specified by the boarding station specifying unit 521, the boarding route specifying unit 522 determines whether there are a plurality of routes (step S4). If a route code is acquired in addition to the station code in step S2, it is determined that there are a plurality of routes, and a boarding route is determined (step S5).

  FIG. 7 is a flowchart showing boarding route determination processing which is a subroutine of the flowchart of FIG. In the figure, the boarding route identifying unit 522 first identifies the rank based on the atmospheric pressure measured by the measuring unit 2 (step S51). Next, the station-specific hierarchy data held in the storage unit 4 is read, and the route is specified based on the station-specific hierarchy data (step S52).

  Returning to FIG. 6, after the boarding route determination process is performed (that is, after the process of step S5 is performed) or when there are not a plurality of routes (when it is determined “No” in step S4), the boarding determination unit 513 specifies the train running state (step S6). That is, it is determined whether the train has entered the platform and stopped. Next, it is determined whether or not the train has departed (step S7), and when it is determined that the train has not departed (that is, when “No” is determined in the determination of step S7), this processing is terminated. On the other hand, when it is determined that the train has started (that is, when “Yes” is determined in the determination in step S7), the vertical line specifying unit 523 determines the vertical line (step S8).

  FIG. 8 is a flowchart showing an up / down line determination process which is a subroutine of the flowchart of FIG. In the figure, the vertical line specifying unit 523 first specifies the train traveling direction based on the geomagnetism and acceleration measured by the measuring unit 2 (step S81). Next, the vertical line direction data held in the storage unit 4 is read to identify the vertical line (step S82).

  Returning to FIG. 6, after the up / down line determination process is performed (that is, after the process of step S8 is performed), the boarding train specifying unit 524 acquires the departure time (step S9), and then specifies the boarding train. (Destination, type (normal, express, etc.) (step S10) After the boarding train is specified, the display processing unit 529 performs route map specifying processing for specifying a route map, and displays it on the display unit 6 (step S10). S11) This process ends when the route map specifying process ends.

  FIG. 9 is a flowchart showing the position specifying process of the mobile terminal device 1 according to the present embodiment. In the figure, the train position specifying unit 525 measures the boarding time (step S20). Next, the train speed is measured (step S21). Then, the travel distance is calculated from the measured boarding time and train speed (step S22). Next, the ratio with the distance between stations is calculated (step S23), and the position is specified (step S24). Next, the station stop identifying unit 526 determines whether the station stops (step S25).

  FIG. 10 is a flowchart showing station stop determination processing which is a subroutine of the flowchart of FIG. The station stop specifying unit 526 specifies the train running state from the determination result of the running / stop determining unit 514 (step S251), and determines whether the train is stopped (step S252). In this determination, when it is determined that the train is not in a stopped state (that is, when “No” is determined in the determination in step S252), the process exits and proceeds to step S26 to determine that the train is in a stopped state. In the case (that is, when “Yes” is determined in the determination in step S252), the door opening / closing is specified by the atmospheric pressure measured by the measurement unit 2 (step S253), and it is determined whether the door is opened (step S254). In this determination, if it is determined that the door is not open (that is, if “No” is determined in the determination in step S254), the process exits and proceeds to step S26, where it is determined that the door is open. (That is, when “Yes” is determined in the determination in step S254), it is determined that the station is stopped (step S255). After determining that the station stops, the process returns to the main routine of FIG.

  Returning to FIG. 10, the station stop identifying unit 526 determines whether or not the result of the station stop determination in step S25 is a station stop (step S26), and when it is not a station stop (that is, “No” in the determination of step S26). If it is determined), the process is terminated. On the other hand, when it is a station stop (that is, when it is determined as “Yes” in the determination of step S26), the position correction to the stop station is performed (step S27), and this process is finished.

  Thus, according to the portable terminal device 1 which concerns on this Embodiment, while acquiring the station code and route code of a non-contact IC card system with a ticket gate, while specifying a boarding station based on the acquired station code, the acquired route Based on the code, specify the boarding route, and based on the vertical line direction data indicating the traveling direction of the upper and lower lines for each route that is held, using the measured acceleration and geomagnetism, which of the upper and lower lines was boarded Since the route map of the boarding route is displayed based on the information of the specific boarding station, boarding route and up-and-down line specified, it is difficult to receive GPS signals such as in the train traveling on the ground, Since an accurate position can be specified even in an environment where a GPS signal such as a subway cannot be received, position display on a deformed map is facilitated.

  In addition, the travel distance is calculated from the train speed and the boarding time, and the train position is determined from the calculated travel distance and the station-to-station distance data for each route, and the train position is determined. When approaching, guidance can be given to get off the vehicle.

  Note that a program describing the functions of the mobile terminal device 1 according to the present embodiment can be stored and distributed in a storage medium such as a magnetic disk, a hard disk, an optical disk, a magneto-optical disk, or a semiconductor memory.

  The present invention can specify an accurate position even in an environment where it is difficult to receive a GPS signal such as in a train traveling on the ground, and an environment where a GPS signal such as a subway cannot be received, and the position is displayed on a deformed map. Therefore, the present invention can be applied to portable terminal devices such as mobile phones and smartphones and PNDs (Portable Navigation Devices) which are small navigation devices.

DESCRIPTION OF SYMBOLS 1 Portable terminal device 2 Measuring part 3 Station / route code acquisition part 4 Memory | storage part 5 Processing part 6 Display part 7 Audio | voice output part 8 Operation part 20 Acceleration sensor 21 Geomagnetic sensor 22 Barometric pressure sensor 23 GPS receiver 51 Information calculation part 52 Route map Processing unit 511 Boarding layer judgment unit 512 Travel direction judgment unit 513 Boarding judgment unit 514 Travel / stop judgment unit 515 Speed calculation unit 516 Boarding time measurement unit 517 Door open / close judgment unit 521 Boarding station specification unit 522 Boarding route specification unit 523 Vertical line specification Section 524 Boarding train identification section 525 Train position identification section 526 Station stop identification section 527 Get-off guidance processing section 528 User input correction section 529 Display processing section

Claims (2)

A station / route code acquisition unit for acquiring a station code and route code of a non-contact IC card system;
A boarding station identifying unit that identifies a boarding station based on the station code acquired by the station / route code acquiring unit,
A boarding route specifying unit for specifying a boarding route based on the route code acquired by the station / route code acquisition unit;
An up / down line direction data holding unit for holding up / down line direction data indicating the advancing direction of each up / down line for each route;
Based on the vertical line direction data held in the vertical line direction data holding part, using an acceleration sensor and a geomagnetic sensor, the vertical line specifying part for specifying which of the vertical line was boarded,
The route of the boarding route based on information on which boarding station specified by the boarding station specifying unit, the boarding route specified by the boarding route specifying unit, and the upper and lower lines specified by the upper and lower line specifying unit A display for displaying the figure;
A portable terminal device comprising: The mobile terminal device according to claim 1,
An inter-station distance data holding unit that holds inter-station distance data for each route;
A speed calculator that calculates the train speed from the output of the acceleration sensor;
A boarding time measuring unit for measuring boarding time;
Traveled from the inter-station distance data held in the inter-station distance data holding unit and the travel distance calculated from the train speed calculated by the speed calculation unit and the boarding time measured by the boarding time measurement unit A train position specifying unit that determines a train position by obtaining a ratio of distances,
A portable terminal device, wherein the train position specified by the train position specifying unit is displayed on a route map displayed on the display unit.

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