JP4472212B2 - Service information distribution apparatus and service information distribution method in mobile communication system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a service information distribution apparatus and service information distribution method in a mobile communication system, and more particularly, to a service information distribution apparatus and service information distribution method in a mobile communication system having a function of acquiring information related to the current position of a user.
[0002]
[Prior art]
As a technique for distributing service information by using this type of user's current location and destination information, service information in the first conventional mobile communication system described in Japanese Patent Laid-Open No. 9-130861 (Document 1) There is a delivery method. In this technology, before the mobile terminal departs to the destination, the current server and the location information of the destination are notified to the information server, so that the information server becomes the vertex on the diagonal of the rectangle of the current location and the destination. Determine the area, search and extract the corresponding service information from the whole area from the database, transmit the extracted service information to the mobile terminal in advance, and the mobile terminal stores the received service information in its own storage unit By doing so, the service information is output from its own storage unit in response to a user request.
[0003]
However, since the service information distribution method in the conventional first mobile communication system distributes the service information of the entire area including the current location to the destination in advance to the mobile terminal, the service information received by the mobile terminal Includes unnecessary information that is not required by the user.
[0004]
The service information distribution method in the conventional second mobile communication system described in Japanese Patent Application Laid-Open No. 2000-261646 (Document 2) that solves the above-described drawbacks is instructed to the mobile terminal in advance of the starting point and the destination. By determining the optimum route between them, when the user gives a service information distribution request while moving along that route, the user moves from the current position of the user to the destination within a predetermined range. Service information close to the area near the partial route is acquired.
[0005]
A service information distribution apparatus and a service information distribution method in a conventional mobile communication system are assumed to be a CDMA (Code Division Multiple Access) mobile phone system as a mobile communication system, and a mobile terminal receives GPS as current position information acquisition means. It has an apparatus and a local station absolute position information detection unit using GPS data.
[0006]
When the user notifies the server with a service information database storing service information closely related to the area near the partial route, the current local station absolute position information is notified and a service information distribution request is instructed. Only service information corresponding to the notification content is extracted from the service information database and distributed to the mobile terminal.
[0007]
As described above, in order for the user to use the service information described above, first, the user needs to perform an operation of specifying a departure point and a destination for setting a route in advance for the mobile terminal. In addition, after arriving at the destination, it is necessary to perform a receiving operation for receiving the service information delivery.
[0008]
[Problems to be solved by the invention]
Since the service information delivery apparatus and service information delivery method in the first conventional mobile communication system described above deliver service information for the entire area including the current location to the destination in advance to the mobile terminal, the mobile terminal receives the service information. The service information has a drawback in that it includes useless information that the user does not need.
[0009]
In addition, the service information distribution apparatus and service information distribution method in the conventional second mobile communication system that solves the first and the above-described drawbacks are closely related to the area near the partial route to the destination. In order to use the service information, first, the user first performs a designation operation of the departure point and the destination for setting the route to the mobile terminal, and after arriving at the destination, the service information distribution is performed. Since it is necessary to perform a receiving operation for receiving, there is a disadvantage that the operation is complicated.
[0010]
The object of the present invention is to detect the arrival of the destination without any special operation when using the service information closely related to the destination surrounding area, without the unnecessary information being distributed during the movement of the user, and to be effective thereafter. It is an object to provide a service information distribution apparatus and service information distribution method in a mobile communication system that automatically distributes service information.
[0017]
A mobile terminal carried by a user and a radio base station and a switching station that integrates the radio base stations and exchanges lines, and distributes service information to the mobile terminal when the user moves using a transportation facility In a service information distribution method in a mobile communication system,
A first mobile terminal position information acquisition step for acquiring current position information of the mobile terminal; and a first vehicle position calculation for calculating a current position coordinate of the vehicle by calculating a current position of the vehicle of the transportation facility There is only one vehicle whose position matches the current position in search of the step and the calculated current position coordinates of the vehicle that match the current position of the mobile terminal obtained in the mobile terminal position information acquisition step. A position matching vehicle search result determination step for determining to perform, a second mobile terminal position information acquisition step for acquiring the current position information of the mobile terminal, a position at which the vehicle is currently calculated, and the vehicle A second train position calculation step for obtaining the current position coordinates of the mobile terminal, and the calculated current position coordinates of the vehicle are The position of the mobile terminal matches the current position in the position mismatch vehicle search result determination step and the position mismatch vehicle search result determination step in which a search is made for a match with the current position and it is determined that the vehicle having the same position does not exist. A destination arrival determination step for determining that the user has arrived at the destination point and got off the vehicle when the vehicle does not exist; and a service information distribution step for distributing the service information. To do.
[0018]
The invention described in claim 2 is the service information distribution method in the mobile communication system according to claim 1 , wherein the transportation is an electrified railway that operates a train as the vehicle. Is.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
[0020]
A service information distribution apparatus and a service information distribution method in a mobile communication system according to the present embodiment include a mobile terminal carried by a user, a radio base station, and an exchange station that integrates the radio base stations and exchanges lines. In a service information distribution apparatus in a mobile communication system that distributes service information to a mobile terminal when the vehicle travels using transportation, the mobile terminal acquires its current position and generates current position information. Comprising information acquisition means, connected to the radio base station and exchange, and recognizing the current location of the mobile terminal based on current location information notified from the mobile terminal via the radio base station and exchange In addition, data that autonomously determines that the mobile terminal has arrived at the destination of the user's movement and distributes service information related to the destination It is characterized in further comprising a chromatography server.
[0021]
In the present embodiment, a CDMA (Code Division Multiple Access) mobile phone system is assumed as the mobile communication system, and the mobile terminal has a GPS (Global Positioning System) receiver as current location information acquisition means. In addition, the transportation system used for movement is an electrified railway, and thus the user uses this railway by getting on the train.
[0022]
Next, referring to FIG. 1 showing the embodiment of the present invention in a block, the service information distribution apparatus in the mobile communication system of the present embodiment shown in this figure constitutes a mobile communication system and a GPS receiver. For obtaining a current position information including GPS positioning data (latitude / longitude) of a current position by receiving radio waves from a GPS satellite and notifying a wireless base station described later of the current position information The mobile terminal 1 is connected to a radio base station (not shown) constituting the mobile communication system and an exchange station (not shown) that integrates the radio base stations and exchanges lines, and these radio base stations and exchange stations are connected to each other. The mobile terminal 1 recognizes the current position of the mobile terminal 1 based on the current position information received via the notification and autonomously determines that the mobile terminal 1 has arrived at the destination of the user's movement. Serial and a data server 6 to deliver the service information related to the destination.
[0023]
The data server 6 includes a position information recognition device 2 that acquires current position information (hereinafter referred to as position information) of the mobile terminal 1 every minute, and a track database 3 that manages station position information and a timetable that is a train operation schedule. And a train specifying device 4 for searching for a train with location information that matches the location information of the mobile terminal 1 from the track database 3 and specifying the train that the user is using, and service information effective for the area where the mobile terminal 1 exists. And an area information database 5 that can be distributed to the mobile terminal 1.
[0024]
The service information stored in the regional information database 5 includes, for example, today's event information, restaurant information, movie information, local weather conditions, local attractions, and the like.
[0025]
Next, FIG. 1, FIG. 2 which shows the service information distribution method of this embodiment which is processing until service information distribution in a flowchart, FIG. 2, and the station coordinates which show the position of the station in the database 3 with the table which represented the coordinate of the latitude and the longitude With reference to FIG. 3 which is information, FIG. 4 which is an explanatory diagram showing the position of each station and track on a map, and FIG. 5 which shows an example of a train timetable managed by the track database 3, this embodiment Will be described.
[0026]
Referring to FIG. 4, there are three lines A, B, and C in this map. Line A is stations A1 to A4, line B is stations A1, B2 to B4, and line C is a station. It has A1, C2-C4, respectively. Hereinafter, for convenience of explanation, it is assumed in FIGS. 3 to 5 that the starting points (terminals) of the lines A, B, and C are the same station A1, and all the lines between the stations are straight lines. The train always runs between stations at the same speed.
[0027]
Referring to FIG. 3, the coordinates of the stations A1 to A4 of the track A are (A), the coordinates of the stations A1, B2 to B4 of the track B are (B), and the coordinates of the stations A1, C2 to C4 of the track C are (C) respectively.
[0028]
Referring to FIG. 5, the departure times of the trains TA1 to TA6 at each of the stations A1 to A4 on the track A are (A), and the trains TB1 to TB6 at each of the stations A1, B2 to B4 on the track B are illustrated. The departure time of each train TC1 to TC6 at each of the stations A1, C2 to C4 on the track C is shown in (B).
[0029]
It is assumed that the user goes from the departure station A1 to the destination station B3 using the train TB2 on the track B.
[0030]
First, the train identification device 4 identifies the train TB2 used by the user.
[0031]
Referring to the station coordinate information of FIG. 3, at the terminal station A1, the current position information of the mobile terminal 1 is longitude = XA1 and latitude = YA1.
[0032]
Station A1 is the starting point of all trains. From the timetable of FIG. 5, trains TA1, TB2 and train TC1 exist at the launch time of 0:15, so which train the user uses at this time It is unclear whether they are doing it.
[0033]
At time 0:15, the train TB2 on the track B on which the user rides leaves the station A1 and starts moving toward the station B2. At 0:16, one minute later, the position information recognition device 2 acquires the current position information of the mobile terminal 1 carried by the user, and notifies the train specifying device 4 of this current position information (mobile terminal position information acquisition step). S1). At this time, the current position coordinate of the mobile terminal 1 is the coordinate Z4.
[0034]
Next, the train identification device 4 calculates the current position of each train and obtains the current position coordinates of the train (train position calculation step S2).
[0035]
The train identification device 4 acquires the station location information of FIG. 3 and the timetable of each train of FIG. 5 from the track database 3. Referring to the timetable of FIG. 5, the trains running at 0:16 are TA2, TA3 on track A, TB1, TB2 on track B, and TC1 on track C. The position of each train at 0:16 is coordinate Z1, coordinate Z2, coordinate Z3, coordinate Z4, and coordinate Z5 in FIG. 4, respectively. These coordinates are based on the station coordinate information in FIG. It is calculated by the following formula.
[0036]
The calculated current position coordinates of each train are searched for a match with the current position of the mobile terminal 1 notified from the position information recognition device 2, and it is determined that there is only one train with a matching position (position matching train). Search result determination step S3).
[0037]
Train longitude = Previous station longitude + (Previous station longitude-Next station longitude) x (Elapsed time from the previous station / Time required from the previous station to the next station)
Train Latitude = Latitude of the previous station + (Latitude of the previous station-Latitude of the next station) x (Time elapsed since departure from the previous station / Time required from the previous station to the next station)
Since the calculated coordinates coincide with the mobile terminal 1 only in the train TB2, the train specifying device 4 determines that the user is moving (riding) using the train TB2.
[0038]
If there is no train whose position matches in step S3, the process returns to step S1.
[0039]
Thereafter, as long as the user continues to ride on the train TB2, the coordinates of the mobile terminal 1 notified every minute by the position information recognition device 2 are based on the coordinates of the station obtained from the track database 3 and the timetable of the train TB2. It coincides with the coordinates of the train TB2 obtained by the above formula (mobile terminal location information acquisition step S4, train location calculation step S5). During this time, the train identification device 4 assumes that the user has not arrived at the destination, and does not distribute information from the regional information database 5 to the mobile terminal 1.
[0040]
At time 0:25, the train TB2 arrives at the destination station B3, and the user gets off the train TB2. Thereafter, the current position of the train TB2 obtained by the above formula based on the coordinates of the current position of the mobile terminal 1 notified by the position information recognition device 2, the coordinates of the station obtained from the track database 3, and the train timetable. The coordinates of the positions do not match (position mismatch train search result determination step S6). That is, at 0:26, one minute later, the train TB2 moves to the coordinate Z6, and the coordinates are longitude = XB3 + (XB4-XB3) / 5, latitude = YB3 + (YB4-YB3) / 5 from the above formula. However, since the user who got off the train remains in the vicinity of the station B3, the coordinates of the current position of the mobile terminal 1 notified by the position information recognition device 2 are longitude XB3 and latitude YB3. The train identification device 4 detects this difference in coordinates and determines that the user has arrived at the target station and got off the train TB2 (target station arrival determination step S7).
[0041]
The train identification device 4 that has determined that the user has arrived at the target station instructs the regional information database 5 to distribute to the mobile terminal 1 service information that is valid at the current location of the mobile terminal 1, that is, around the station B3. . The service information database 5 extracts service information effective at the current time around the target station B3 and distributes it to the mobile terminal 1 (station periphery information distribution step S8).
[0042]
In the present embodiment, GPS is used as a method for acquiring location information of a mobile terminal, and location information included in radio waves from satellites is used. However, PHS and mobile phone radio waves also include location information included therein. If the information is converted into the same coordinate system as the position information of the track of the transportation system, the transportation system used can be specified in the same manner.
[0043]
In addition to the train, the target transportation means may be any bus, such as a bus, whose travel route and time are determined and whose position can be calculated for each time.
[0044]
As described above, the service information distribution device and the service information distribution method in the mobile communication system according to the present embodiment allow the user while the position information of the mobile terminal and the position information of a traffic vehicle such as a train match. It is possible to detect that the user has arrived at the destination autonomously without any special operation by the user by determining that the traffic vehicle is being used (riding). It is possible to construct an information distribution system in which effective information is automatically distributed after arrival at the destination without unnecessary information being distributed to the user before arrival.
[0045]
【The invention's effect】
As described above, the service information distribution apparatus and the service information distribution method in the mobile communication system of the present invention include the current position information acquisition unit that the mobile terminal acquires its current position and generates the current position information. The mobile terminal is connected to the radio base station and the switching center and recognizes the current position of the mobile terminal based on the current position information received from the mobile terminal via the radio base station and the switching center. Since it has a data server that autonomously determines that the user has arrived at the destination of movement and distributes service information related to the destination, the position information of the mobile terminal, the position information of a traffic vehicle such as a train, While the two match, by determining that the user is using the traffic vehicle, the user autonomously arrives at the destination without any special operation by the user. An information distribution system has been constructed so that effective information can be automatically distributed after arrival at the destination, without unnecessary information being distributed to the user before arrival at the destination. There is an effect that can be done.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of a service information distribution apparatus in a mobile communication system of the present invention.
FIG. 2 is a flowchart showing a service information distribution method which is an operation of the service information distribution apparatus in the mobile communication system of the present embodiment.
FIG. 3 is a table showing station coordinate information in which the position of a station in a database is expressed by latitude and longitude coordinates.
FIG. 4 is an explanatory diagram showing positions of stations and tracks on a map.
FIG. 5 is a table showing an example of a train timetable managed by a track database.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mobile terminal 2 Position information recognition apparatus 3 Track database 4 Train specific device 5 Area information database 6 Data server A, B, C Track A1-A4, B2-B4, C2-C4 Station TA1-TA6, TB1-TB6, TC1- TC6 train Z1-Z6 coordinates

Claims (2)

A mobile terminal carried by a user and a radio base station and an exchange station that integrates the radio base stations and exchanges lines, and distributes service information to the mobile terminal when the user moves using a transportation facility In a service information distribution method in a mobile communication system,
A first mobile terminal location information acquisition step of acquiring current location information of the mobile terminal;
A first vehicle position calculating step for calculating a current position coordinate of the vehicle by calculating at which position the vehicle of the transportation is currently located;
The calculated current position coordinates of the vehicle are searched for a match with the current position of the mobile terminal obtained in the mobile terminal position information acquisition step, and there is only one vehicle whose position matches the current position. A position matching vehicle search result determination step to determine;
A second mobile terminal location information acquisition step for acquiring the current location information of the mobile terminal;
A second train position calculating step for calculating the current position of the vehicle and obtaining the current position coordinates of the vehicle;
A position mismatch vehicle search result for determining that the vehicle having the same position does not exist by searching for the current position coordinate of the vehicle that matches the current position of the mobile terminal obtained in the mobile terminal position information acquisition step. A decision step;
In the position mismatch vehicle search result determination step, if there is no vehicle whose position matches the current position of the mobile terminal, it is determined that the user has arrived at the destination point and got off the vehicle. A service information distribution method in a mobile communication system, comprising: a step; and a service information distribution step of distributing the service information.   2. The service information distribution method in a mobile communication system according to claim 1, wherein the transportation means is an electrified railway that operates a train as the vehicle.

Images