JP2013174541A - Navigation device, navigation method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device that guides a user for an exit station at more appropriate timing in consideration of a train travel speed and a distance between stations.SOLUTION: A navigation device comprises: a route search section 111 that searches for a route from a getting-on station to a getting-off station of traffic means; an alarm start timing determination section 113 that, on the basis of searched route search result information, determines alarm start timing so as to start an alarm device at predetermined timing before the traffic means arrives at the getting-off station; and an alarm starting section 114 that starts the alarm device when the alarm start timing comes. The alarm start timing determination section 113 determines the alarm start timing on the basis of at least one of a travel speed of the traffic means and the distance between the getting-off station and a stop station immediately before the getting-off station.

Description

  The present invention relates to a navigation device, a navigation method, and a program.

  In order to prevent passengers from getting off at the getting-off station, a system is known in which an alarm is sounded to inform a user immediately before a transportation means such as a train or a bus arrives at the getting-off station.

  In Patent Document 1, in a transfer guidance system that provides a service that generates an alarm when the arrival time of a train is reached by using train operation timetable information, the user can measure the current position at regular intervals from a GPS mobile phone possessed by the user. The arrival time is corrected when a delay occurs in the train by comparing the obtained position information of the current position and the timetable information with position information of each station on the route provided by the transfer guidance site. A transfer guidance system is disclosed.

  Patent Document 2 discloses a system for calculating an intermediate time between an arrival time at a disembarking station and an arrival time at a stop station one station ahead based on an operation timetable, and setting an alarm at the calculated time. Is disclosed.

JP 2010-231303 A JP 2006-295267 A

  However, in the systems described in Patent Documents 1 and 2, an alarm cannot be sounded at an appropriate timing in consideration of the moving speed of a train and the distance between stations. For example, the appropriate timing for sounding the alarm differs between a train with a high traveling speed and a long distance between the stop stations, such as the Shinkansen, and a conventional line with a slower speed than the Shinkansen and a short distance between the stop stations. However, the methods described in Patent Documents 1 and 2 cannot determine the timing for starting the alarm in consideration of the speed and the distance between stations.

  Therefore, an object of the present invention is to guide the user to get off at a more appropriate timing in consideration of the moving speed of the transportation means and the distance between stations.

  The navigation device according to the present invention includes a route search unit that searches for a route from a boarding station to a disembarkation station of the transportation means, and the transportation means until the transportation arrives at the disembarking station based on the searched route search result information. An alarm activation timing determining unit that determines an alarm activation timing so as to activate the alarm device at a predetermined timing; and an alarm activation unit that activates the alarm device when the alarm activation timing arrives, and the alarm The activation timing determination unit determines the alarm activation timing based on at least one of a traveling speed of the transportation means and a distance between the getting-off station and a stop station immediately before the getting-off station.

  Further, the alarm activation timing determination unit may set the alarm activation timing according to a distance to the getting-off station or a time to arrive at the getting-off station.

  Further, the alarm activation timing determination unit may make the alarm activation timing earlier as the traveling speed is faster or the distance between the getting-off station and the stop station immediately before the getting-off station is longer. .

  Further, the alarm activation timing determination unit determines the alarm activation timing so that the alarm device is activated while the train is traveling between the stop station immediately before the getting-off station and the getting-off station. May be.

  The alarm activation unit may be configured such that when the transportation means does not pass through the stop station immediately before the getting-off station, when the alarm activation timing arrives, the transportation means stops at the stop station immediately before the getting-off station. The alarm device may be activated on condition that it has passed.

  Further, the alarm activation unit has one or more passing stations between the getting-off station and the stop station just before the getting-off station, and the transportation means does not pass the passing station just before the getting-off station. In some cases, when the alarm activation timing arrives, the alarm device may be activated on condition that the transportation means has passed a passing station immediately before the getting-off station.

  The traveling speed of the train may be an average speed of the train from the boarding station to the current position or an instantaneous speed at the current position.

  The navigation method according to the present invention includes a step of searching for a route from a boarding station to a disembarking station of the transportation means, and a predetermined time until the transportation means arrives at the disembarking station based on the searched route search result information. The step of determining the alarm activation timing so as to activate the alarm device at the timing, and the step of activating the alarm device when the alarm activation timing has arrived, and the step of determining the alarm activation timing, The alarm activation timing is determined based on at least one of a traveling speed of the transportation means and a distance between the getting-off station and a stop station just before the getting-off station.

  The program according to the present invention uses a computer to search for a route from a boarding station to a disembarking station of the transportation means, and based on the searched route search result information, the transportation means arrives at the disembarking station. Functions as an alarm activation timing determination unit that determines the alarm activation timing and an alarm activation unit that activates the alarm device when the alarm activation timing arrives, so that the alarm device is activated at a predetermined timing until The alarm activation timing determination unit determines the alarm activation timing based on at least one of a traveling speed of the transportation means and a distance between the getting-off station and a stop station immediately before the getting-off station. .

  According to the present invention, it is possible to guide the user to get off at a more appropriate timing.

The block diagram which shows the structure of the navigation apparatus by embodiment of this invention. The flowchart of operation | movement of the navigation apparatus by embodiment of this invention. The flowchart of operation | movement of the alarm starting timing determination part by embodiment of this invention. The figure explaining the alarm starting timing by embodiment of this invention.

Next, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
Embodiment FIG. 1 is a block diagram showing a configuration of a navigation apparatus 1 according to an embodiment of the present invention. The navigation device 1 is a mobile phone, a portable information terminal, a portable navigation device, a notebook computer, or other portable terminal device. The navigation device 1 may be a dedicated navigation terminal.

  As shown in FIG. 1, the navigation device 1 includes a control device 11, an input device 12, a display device 13, and an alarm device 14. The control device 11 includes, as hardware, a CPU, a memory such as a ROM and a RAM, an external storage device that stores various information, an input interface, an output interface, a communication interface, and a bus that connects these. Functionally, the control device 11 includes a route search unit 111, a position detection unit 112, an alarm activation timing determination unit 113, an alarm activation unit 114, and a route information storage unit 115. The route search unit 111, the position detection unit 112, the alarm activation timing determination unit 113, and the alarm activation unit 114 correspond to modules having functions realized by the CPU executing a predetermined program stored in a ROM or the like. The route information storage unit 115 is implemented by an external storage device.

  The route search unit 111 has a function of searching for an optimum route from the boarding station to the getting-off station with reference to route map data or the like according to the inputted route searching conditions (boarding station, getting-off station). Specifically, by using the route network data corresponding to the route, by sequentially searching for a link from the boarding station node to the getting-off station node, by following the link with the smallest cost information of the link and making the route The optimum route can be searched. As such a route search method, a known method such as a label determination method or a Dijkstra method can be used. The “optimum” route means that the cost information from the boarding station to the getting-off station is minimal. The link cost information can be set according to the purpose, such as a distance, required time, fee, other parameters, and any combination of various parameters.

  The position detection unit 112 has a function as position detection means for detecting the current position. The position detection unit 112 receives a GPS satellite signal by a GPS receiver, and measures the current position (latitude and longitude) of the navigation device 1. The position detection unit 112 can also measure the current position of the navigation device 1 by autonomous navigation by including a gyro sensor, a geomagnetic sensor, and the like. Thereby, the current position can be measured even when the GPS receiver cannot determine the position from the GPS satellite signal. Further, the position detection unit 112 may acquire positioning information by GPS from the outside using a tethering function.

  In addition, in the basement or the like, the position detection unit 112 can communicate with an access point installed nearby and detect the current position based on the position information of the access point. Alternatively, the indoor current position may be detected by receiving a signal from an information transmission device such as an RFID installed indoors.

  The alarm activation timing determination unit 113 determines the timing to activate the alarm device 14 based on the route search result.

  The alarm activation unit 114 activates the alarm device 14 according to the timing determined by the alarm activation timing determination unit 113.

  In the route information storage unit 115. Note that route data and timetable data necessary for route search are stored. These data may be acquired from a database on a communication network.

  The input device 12 is for operation and input by the user. The input device 12 is a keyboard or output means for performing various input operations by operating numeric keys, alphabet keys, other function keys, selection keys, scroll keys, and the like. A touch panel for selecting a desired menu from a menu screen displayed on a certain display device 13 can be provided.

  The display device 13 displays a menu screen, transfer guidance information, a route map, and the like. The user operates the input device 12 to display a service menu screen or a predetermined input screen on the display device 13 and input conditions such as a boarding station or a getting-off station (destination).

  The alarm device 14 has a function of generating sound, and performs various notifications such as the user approaching the station where the user is scheduled to get off. The alarm device 14 also has a function of notifying the user without generating sound by generating vibration.

Next, the operation of the navigation device 1 will be described.
FIG. 2 is a flowchart of the operation of the navigation device 1. In addition, each processing step to be described later can be executed in any order or in parallel as long as there is no contradiction in processing contents, and other steps may be added between the processing steps. . Moreover, the step described as one step for convenience can be performed by dividing it into a plurality of steps. On the other hand, what is divided into a plurality of steps for convenience can be understood as one step.

  First, in step S11, the route search unit 111 waits until the boarding station and the getting-off station are set by a user operation. When the boarding station and the getting-off station are set, the process proceeds to step S12. The boarding station and the getting-off station can be set by the user specifying a point on the route map or inputting a station name via the input device 12.

  In step S12, a route from the boarding station to the getting-off station set in step S11 is searched. At this time, the optimum route can be searched by sequentially searching for a link from the node at the boarding station to the node at the getting-off station and following the link having the smallest cost information on the link as a guide route. As such a route search method, a known method such as a label determination method or a Dijkstra method can be used. The route search result includes the boarding station, the getting-off station, the name of the route to be boarded and the type of train (stops at each station, express, etc.), departure time, estimated arrival time, information on the stop station, and the like.

  Next, in step S13, the alarm activation timing determination unit 113 determines the timing for activating the alarm device 14 based on the route search result in step S12.

  FIG. 3 is a flowchart of an operation in which the alarm activation timing determination unit 113 determines the timing at which the alarm device 14 is activated.

  First, in step S21, the alarm activation timing determination unit 113 acquires route search result information.

  Next, in step S22, the alarm activation timing determination unit 113 determines a stop station immediately before the getting-off station based on the route search result information. For example, as shown in FIG. 4, if the boarding station is “Shinbashi”, the boarding station is “Tokyo”, and the train being boarded is “Yamanote Line”, the stop station just before the boarding station is “Yurakucho”. Become. On the other hand, when the boarding station is “Shimbashi”, the station at which the train gets off is “Tokyo”, and the train being boarded is “Tokaido Line”, the stop station just before the station at which it gets off is “Shinbashi”.

  Next, in step S23, the alarm activation timing determination unit 113 determines the alarm activation timing based on the route search result information. Specifically, the alarm activation timing determination unit 113 determines the alarm activation timing so that the alarm device 14 is activated at an appropriate timing while the train is traveling between the getting-off station and the stop station just before the getting-off station. To do. The alarm activation timing can be determined by the distance to the getting-off station (such as 500 m before the getting-off station) or the time (such as one minute before arrival at the getting-off station).

  The alarm activation timing determination unit 113 determines the alarm activation timing based on the name of the route on which the vehicle is boarded and the type of train (station stop, express, etc.). For example, if the train being boarded is a “Shinkansen”, the distance between the stations (the distance between the getting-off station and the stop station just before the getting-off station) is long, so as shown by T in FIG. The alarm may be activated 5km before, and if the train is on the “Yamanote Line”, it may be 500m before. Also, when deciding on the time to the station to get off, if you are on the Shinkansen, the speed of approaching to the station is fast, so set the alarm to be activated 5 minutes in advance, and 30 seconds before the Yamanote line. It may be.

  Further, the alarm activation timing determination unit 113 may determine the alarm activation timing based on the speed of the traveling train, not based on the name of the route on which the vehicle is boarded or the type of train (station stop, express, etc.). Good. The train speed can be calculated from GPS positioning information or the like. As the speed, an average speed from the boarding station may be used, or an instantaneous speed at a predetermined point may be used.

  In step S14 of the flowchart of FIG. 2, the position detection unit 112 acquires the current position of the navigation device 1.

  Next, in step S15, the alarm activation unit 114 determines whether or not the current position is between the getting-off station and the stop station just before the getting-off station.

  If it is determined in step S15 that the current position is between the getting-off station and the stop station just before the getting-off station (YES), in step S16, the alarm activation unit 114 passes the passing station immediately before. It is determined whether or not. For example, as shown in FIG. 4, if the train being boarded is “Tokaido Line” and the stop station is “Tokyo”, the passing station “Yurakucho” is between the stop station “Shinbashi” and the stop station “Tokyo”. Exists. Thus, when one or more passing stations exist between the getting-off station and the immediately preceding stop station, it is determined whether or not the passing station immediately preceding the getting-off station has passed.

  If it is determined in step S16 that the current position has passed the previous passing station (YES), in step S17, the alarm activation unit 114 has reached the alarm activation timing determined by the alarm activation timing determination unit 113. Determine whether or not. That is, when the alarm activation timing is specified by the distance to the getting-off station, it is determined that the alarm activation timing has arrived if the distance between the current position and the getting-off station is equal to or less than the specified distance. Also, when the alarm activation timing is specified by the time until arrival at the getting-off station, the time until arrival at the getting-off station is calculated, and if the calculated time is less than the specified time, the alarm activation timing has arrived Judge. The time until arrival at the getting-off station may be calculated from the estimated arrival time and the current time included in the route search result, or from the traveling speed (average speed or instantaneous speed) of the train and the distance to the getting-off station. May be.

  If it is determined in step S17 that the alarm activation timing has arrived (YES), the alarm activation unit 114 activates the alarm device 14 in step S18.

  As described above, according to the present embodiment, the alarm activation timing determination unit performs appropriate alarm activation based on the traveling speed of the train being boarded and the distance between the getting-off station and the stop station just before the getting-off station. Since the timing is determined, it is possible to guide the user to get off at a more appropriate timing. In addition, since the alarm activation unit 114 activates the alarm on the condition that the immediately preceding stop station and the previous passing station have passed, even if the alarm activation determined by the alarm activation timing determination unit 113 arrives. It is possible to prevent the alarm from sounding until after the immediately preceding stop station and the immediately preceding passing station. That is, for example, when passing through the immediately preceding station is later than the alarm activation timing, the alarm can be sounded immediately after passing through the immediately preceding station.

  As a modification of the present embodiment, the number of times the alarm is activated may be changed according to the distance between the stop stations of the on-board train. For example, when the distance between the immediately preceding stop station and the getting-off station is more than a certain value, or when the time until the arrival at the getting-off station is more than a certain value, the alarm activation timing determining unit 113 A first alarm activation timing and a second alarm activation timing may be set. The alarm activation unit 114 sounds an alarm when the first alarm activation timing arrives after passing the immediately preceding stop station and the previous passing station, and sounds the alarm again when the second alarm activation timing arrives. Also good. Note that the first alarm activation timing may be immediately after departure from the immediately preceding stop station.

  In this embodiment, the alarm is activated when passing through the immediately preceding stop station and the immediately preceding passing station and when the alarm activation timing has arrived. Either one or both may not be included in the condition. Further, the combination of conditions may be changed according to the traveling speed of the train being boarded, the distance between stations, and the like.

  In this embodiment, the case where a train is used as a transportation means has been described as an example. However, the present invention can also be applied to transportation means (public transportation) such as buses and ships other than trains.

  Moreover, you may make it provide at least one part of the function and memory | storage part with which the navigation apparatus 1 is provided in this embodiment in the server connected via a communication network.

  DESCRIPTION OF SYMBOLS 1 Navigation apparatus, 11 Control apparatus, 12 Input apparatus, 13 Display apparatus, 14 Alarm apparatus, 111 Route search part, 112 Position detection part, 113 Alarm starting timing determination part, 114 Alarm starting part, 115 Route information storage part

Claims (9)

A route search unit that searches for a route from a boarding station to a stop station of transportation,
Based on the searched route search result information, an alarm activation timing determination unit that determines an alarm activation timing so as to activate an alarm device at a predetermined timing until the transportation means arrives at the getting-off station;
An alarm activation unit that activates the alarm device when the alarm activation timing arrives,
The said alarm starting timing determination part is a navigation apparatus which determines the said alarm starting timing based on at least one of the travel speed of the said transportation means, and the distance between the said getting-off station and the stop station just before this getting-off station.   The navigation device according to claim 1, wherein the alarm activation timing determination unit sets the alarm activation timing according to a distance to the getting-off station or a time to arrive at the getting-off station.   3. The alarm activation timing determination unit according to claim 1, wherein the alarm activation timing determination unit makes the alarm activation timing earlier as the traveling speed is higher or the distance between the getting-off station and the stop station immediately before the getting-off station is longer. The navigation device described.   The alarm activation timing determination unit determines the alarm activation timing so that the traffic device activates the alarm device while traveling between the stop station immediately before the stop station and the stop station. The navigation device according to any one of 1 to 3.   The alarm activation unit, when the transportation means does not pass through the stop station immediately before the getting-off station, when the alarm activation timing arrives, the transportation means passes through the stop station immediately before the getting-off station. The navigation device according to any one of claims 1 to 4, wherein the alarm device is activated on the condition that it has been performed.   In the case where one or more passing stations exist between the getting-off station and the stop station just before the getting-off station, and the transportation means does not pass the passing station just before the getting-off station, The navigation according to any one of claims 1 to 5, wherein when the alarm activation timing arrives, the alarm device is activated on condition that the transportation means has passed a passing station immediately before the getting-off station. apparatus.   The navigation device according to any one of claims 1 to 6, wherein the traveling speed of the transportation means is an average speed of the transportation means from the boarding station to the current position or an instantaneous speed at the current position. . Searching for a route from the boarding station to the station of transportation,
A step of determining an alarm activation timing based on the searched route search result information so that the alarm device is activated at a predetermined timing until the transportation means arrives at the getting-off station;
A step of activating the alarm device when the alarm activation timing arrives,
In the step of determining the alarm activation timing, the alarm activation timing is determined based on at least one of a traveling speed of the transportation means and a distance between the getting-off station and a stop station immediately before the getting-off station. . Computer
A route search unit that searches for a route from a boarding station to a stop station of transportation,
Based on the searched route search result information, an alarm activation timing determination unit that determines an alarm activation timing so as to activate an alarm device at a predetermined timing until the transportation means arrives at the getting-off station;
When the alarm activation timing arrives, it functions as an alarm activation unit that activates the alarm device, and the alarm activation timing determination unit determines the traveling speed of the transportation means and the stop just before the getting-off station and the getting-off station The program which determines the said alarm starting timing based on at least one of the distance between stations.

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