JP2001186564A - Mobile communication terminal and wireless communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable residents in a town to be able to browse a bus time table by utilizing an existing wireless communication system. SOLUTION: The wireless communication system is provided with a plurality of 1st wireless base stations, a center station that is connected to the 1st wireless base stations through a network, a mobile communication terminal that is wirelessly connected to some of the surrounding 1st wireless base stations among the 1st wireless base stations to access the center station via the base stations or to respond to a call from the center station, and a 1st database that stores time table information of each bus stop in the vicinity of the 1st wireless base stations. When the center station is connected to the mobile communication terminal, the center station reads the time table information of the bus stop in the vicinity of the 1st wireless base stations, to which the terminal is connected wirelessly from the 1st database and transmits the information to the terminal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timetable for a route bus, for example, a PHS (Personal Handy Phone System).
The present invention relates to a wireless communication system capable of downloading to a mobile communication terminal and the like and the mobile communication terminal.

[0002]

2. Description of the Related Art At a bus stop where bus users are usually very crowded, an electronic bulletin board is used to notify bus timetable information such as estimated bus arrival time.

[0003]

However, the conventional system has a high capital investment cost and is installed only in a limited area such as an airport. In addition, even if an electronic bulletin board is installed at each bus stop in the town in the future, it is difficult to realize the electronic bulletin board in view of crime prevention because it is installed as it is.

[0004] The present invention aims to solve the above-mentioned problems of the prior art by using an existing wireless communication system such as a PHS (Personal Handy Phone System).

[0005]

In order to solve the above-mentioned problems, the present invention as defined in claim 1 provides a center station connected to a network and a plurality of wireless base stations connected to the network. In a mobile communication terminal used in a wireless communication system having bus stop information and a database in which bus timetable information is registered for each bus stop information, when a mobile station terminal is connected via the center station and a surrounding wireless base station, Storage means for downloading and storing bus timetable information relating to the radio base station; notification means; clock means for outputting current time information; and whether or not to perform notification by the notification means based on the timetable information and current time. A mobile communication terminal having a control means for operating the notification means when determining whether to perform the notification.

According to a second aspect of the present invention, there is provided a center station connected to a network, bus stop information nearest to each of a plurality of radio base stations connected to the network, and a bus timetable for each bus stop information. In a mobile communication terminal used in a wireless communication system having a database in which information is registered, when connecting via the center station and a surrounding wireless base station, timetable information related to the wireless base station is downloaded and stored. Setting means for setting an alarm time by a predetermined operation; notification means; clock means for outputting the current time; and a value obtained by subtracting the current time from the bus timetable information to the alarm time. A mobile communication terminal having control means for operating the notifying means when the mobile communication terminal is turned on.

According to a third aspect of the present invention, there is provided a wireless communication system comprising: a plurality of first wireless base stations; a center station connected to the plurality of first wireless base stations through a network; A mobile communication terminal configured to be wirelessly connected to a peripheral first wireless base station and to be able to access the center station via the base station, or to be able to respond to a call from the center station; A first database for storing timetable information of each bus stop near the first wireless base station, wherein the center station, when connected to the mobile communication terminal, establishes a first wireless connection with the mobile communication terminal; A wireless communication system having a function of reading timetable information of the bus stop near a wireless base station from the first database and transmitting the timetable information to the terminal.

[0008] The invention described in claim 4 is the invention according to claim 3.
In the wireless communication system, the mobile communication terminal is configured to store the timetable information, a clock unit that outputs current time information, a notifying unit, and the timetable information based on the current time. It is provided with control means for determining whether or not to perform the notification by the notification means, and operating the notification means when determining to perform the notification.

The invention described in claim 5 is the third invention.
In the wireless communication system, the mobile communication device terminal stores the time table information, setting means for setting an alarm time by a predetermined operation, notification means, and clock means for outputting a current time. And control means for operating the notifying means when a value obtained by subtracting a current time from the time table information becomes the alarm time.

The invention described in claim 6 is the third invention.
, A plurality of second radio base stations connected to the center station via a network, and the center station is connected to a peripheral second radio base station among the plurality of second radio base stations via the base station. Has a route bus configured to be accessible to or able to respond to a call from the center station, and a second database storing position information of the second radio base station, Receiving means for receiving, from the second database, position information of a second radio base station to which the route bus is wirelessly connected when connecting to the route bus, and a timetable in the first database based on the received position information; This is a wireless communication system having an updating unit that updates information.

The invention described in claim 7 is the third invention.
, A plurality of second radio base stations connected to the center station via a network, and the center station is connected to a peripheral second radio base station among the plurality of second radio base stations via the base station. , Or configured to be able to respond to a call from the center station, and to have position detecting means, and to transmit position information when the access is made or when the call is answered. The center station, when connected to the route bus, updates the timetable information in the first database based on the position information sent from the route bus. It is a wireless communication system having.

The invention described in claim 8 is the third invention.
, The center station is a wireless communication system having a function of transmitting the current position information of the route bus to the mobile communication terminal when connected to the mobile communication terminal.

The invention according to claim 9 is the third invention.
2. The wireless communication system according to claim 1, wherein the first wireless base station also serves as the second wireless base station.

The invention according to claim 10 is the wireless communication system according to claim 7, wherein the position detecting means is a GPS receiver.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the present invention and is a diagram of a radio communication system using PHS and GPS. Public network 1, center station 2, database 3, route bus 4, PHS base station 5, PHS terminal 6, exchange 7,
Bus stops A and B are indicated by blocks. The PHS base station 5 and the exchange 7 can use conventional equipment without change. In this example,
As the center station 2, a center station that performs conventional processing such as location registration and charging of the PHS terminal 6 is used as it is, and in addition to these processing, route bus map information is stored in the database 3.
New functions such as updating the database 3 and downloading the nearest bus stop information (position information, scheduled bus arrival timetable information) to the PHS terminal 6 are provided.

FIG. 2 is a block diagram of the center station 2. The figure shows a network connection control unit 2a, a control unit 2b having an arithmetic function and various control functions, and a storage unit 2c that constructs a database.

FIG. 3 shows a block diagram of the PHS terminal 6.
Radio section 6a, control section 6b for performing baseband signal processing and various controls, voice processing section 6c, transmitting section 6d, receiving section 6
e, a ringer 6f, a vibrator 6g, a display unit 6h, an operation unit 6i, a memory 6j, and a clock unit 6k. The PHS terminal 6 operates the center station 2 by a predetermined key operation.
And has new functions such as a function of transmitting a signal requesting the nearest bus stop information and the like, and a function of storing and displaying the nearest bus stop information to be downloaded, via the nearest PHS base station 5.

FIG. 4 is a block diagram of the route bus 4 according to the present invention. A GPS (global positioning system) receiver 4a, a control unit 4b for acquiring position information, acquiring speed information, and performing various controls, and a PHS
The wireless unit 4c and the speedometer 4d are indicated by blocks.

In this embodiment, first, a center station 2 is connected to a telephone public network 1. The center station 2 manages a database 3 that stores route bus map information. The items of the route bus map information include distance information between bus stops, location information of each route bus 4 and bus stop information (location information, scheduled bus arrival timetable information) near each PHS base station 6, and the like. These are updated when changes. The route bus 4 is connected to the GPS receiver 4a and the control unit 4
b and a PHS radio unit 4c, and detects the position information with the GPS receiver 4a during the bus operation, and sends the information to the center station 2 via the peripheral PHS base station 5 from time to time or at predetermined time intervals.
Alternatively, the position information and the traveling speed information are sent each time the vehicle travels a predetermined distance based on the position information. Thereby, in the center station 2, the control means 2b calculates the remaining section distance to each bus stop from the current position information of the route bus 4, collectively manages the traveling speed and the current time, and further calculates the average of the traveling speed information. The arrival time to each bus stop is calculated and predicted from the section distance. Further, the control means 2b updates the contents of the database 3 with the latest information such as the position information of the route bus 4 and the remaining section distance to each bus stop.

When the user of the PHS terminal 6 near the bus stop B performs a predetermined key operation, the PHS terminal 6
The center station 2 is accessed via the HS base station 5 and a signal requesting the latest information on the nearest bus stop is transmitted. In the center station 2 which has received the request signal regarding the latest information of the bus stop from the connected PHS terminal 6, the control means 2b transmits the request from the database 3 based on the identification information unique to the PHS base station 5 which is the relay station included in the received signal. Data (latest bus stop information, route bus position information) is read from the storage area corresponding to the identification information, and the PHS connecting the bus stop information (scheduled bus arrival timetable information, bus stop position information) and the route bus position information is connected. Download to the PHS terminal 6 via the base station 5. The control unit 6b of the PHS terminal 6 controls to display the information downloaded to the memory 6k on the display unit 6h, so that the terminal user browses the display contents to know the nearest bus stop position and to estimate the arrival time of the bus. You can know the current position of tables and route buses. Further, during communication with the center station 2, the updated latest information is downloaded each time, so that a change in the position information of the route bus, a change in the estimated arrival time, and the like can be monitored on the display unit 6h.

The PHS terminal 6 can set an alarm time in the memory 6k by operating a predetermined key. The clock means 6j outputs the current time. When the time obtained by subtracting the current time information from the downloaded scheduled bus arrival time information matches the alarm time, the control section 6b outputs the ringer signal.
A special ringer sound is sounded from f to notify the user of the PHS terminal 6. Therefore, prior to the scheduled bus arrival time,
Since the user can know the alarm time in advance, the user can head to the bus stop B with a margin. The notification that the alarm time has come is made by the special vibration of the vibrator 6g or the display unit 6h instead of the ringer sound.
Can also be displayed. Furthermore, regarding this announcement,
The PHS terminal 6 has an image display function to perform a special image display indicating that the alarm time has come, or a PHS terminal 6 has a voice message playback function to provide a special voice message indicating that the alarm time has come. ) May be notified.

As described above, one embodiment of the present invention has been described, but the present invention is not limited to this, and can be changed within the scope of the claims. Different embodiments are described below by way of example.

Embodiment 2) GPS receiver 4 of route bus 4
a, the service is operated without sequentially updating the bus stop information (scheduled bus arrival timetable) of the center station 2 without using the control unit 4b and the PHS radio unit 4c. This example is suitable for an area where road conditions are stable such that the estimated bus arrival time is not affected by road conditions.

Embodiment 3 The center station 2 has the position information of each PHS base station 5 as a database. When the PHS radio unit 4c of the route bus 4 makes a wireless connection with the surrounding PHS base station 6, the control unit 2b of the center station 2 stores position information that can be searched with identification information unique to the PHS base station 5 wirelessly connected. And uses this as the position information of the route bus 4. A database may be provided for each PHS base station 5. In this case, the control unit 2b of the center station 2 receives the position information of the PHS base station 5 from the PHS base station 5 at the time of connection. use. In the third embodiment, the GPS receiver 4a of the route bus 4 is not used. Others may be the same as the above-described first embodiment. This example is suitable for an area where the PHS base stations 5 are installed at short intervals along the bus route.

[Embodiment 4] The P which is wirelessly connected to the route bus 4
The HS base station is a base station dedicated to a route bus separately from the existing PHS base station 5. This is suitable for a case where the PHS terminal 6 constantly monitors the change of the position information of the route bus 4 in detail and occupies a wireless channel by always connecting the route bus 4 and the PHS base station wirelessly.

Embodiment 5 As a base station for wireless connection to the route bus 4, a satellite of a telephone system using a satellite such as the Iridium system or a ground base station of a portable telephone system other than the PHS is used. Note that the radio base station to which the mobile communication terminal connects is not limited to the PHS base station.

As described above, the present invention can be easily implemented in the infrastructure and terminals of an existing wireless communication system such as PHS mainly by adding software without any special change in hardware. It is possible.

Further, a user of a mobile communication terminal such as a PHS terminal can refer to the bus timetable information at a place away from the nearest bus stop by using his / her own terminal, and the arrival and arrival of the bus is displayed and notified. You can know the time.

Since the time before the scheduled arrival time at the nearest bus stop can be set in advance as the alarm time, it is possible to know the arrival of the bus in advance by displaying or notifying. As a result, the terminal user can easily head to the nearest bus stop without worrying about a delay in the arrival time of the bus, which is very convenient.

Further, during communication between the center station and the mobile communication terminal, the position information of the route bus is displayed on the display screen of the terminal as "XX line, XX bus stop, XX bus stop until XX bus stop".
It is also possible to display "minutes" or the like, which is very convenient because it can be monitored.

[0031]

According to the present invention, in the infrastructure and terminals of an existing wireless communication system such as PHS, no special change is required in hardware, and the timetable information of the route bus is mainly obtained by adding software. The mobile communication terminal of the wireless communication system allows the user to know this.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, wherein PHS and G
FIG. 1 is a diagram of a wireless communication system using a PS.

FIG. 2 is a block diagram of a center station in FIG. 1;

FIG. 3 is a block diagram of a PHS terminal in FIG. 1;

FIG. 4 is a block diagram related to the present invention of the route bus in FIG. 1;

[Explanation of symbols]

 1: Public network 2: Center station 3: Route bus map information storage means 4: Route bus 5: PHS base station 6: PHS terminal 7: Switch A, B: Bus stop

Claims (10)

[Claims] 1. A radio station having a center station connected to a network, and a database in which information of a nearest bus stop for each of a plurality of radio base stations connected to the network and bus timetable information for each of the bus stop information are registered. In the mobile communication terminal used in the communication system, when connected via the center station and the surrounding wireless base station, storage means for downloading and storing bus timetable information related to the wireless base station, a notifying means, Clock means for outputting current time information, and control means for determining whether or not to perform the notification by the notification means based on the timetable information and the current time, and operating the notification means when determining to perform the notification. And a mobile communication terminal. 2. A radio station having a center station connected to a network, and a database in which information of the nearest bus stop for each of a plurality of radio base stations connected to the network and bus timetable information for each of the bus stop information are registered. In the mobile communication terminal used in the communication system, when connected via the center station and the surrounding wireless base station, storage means for downloading and storing timetable information related to the wireless base station, by a predetermined operation, Setting means for setting an alarm time, notifying means, clock means for outputting a current time, and control for operating the notifying means when a value obtained by subtracting the current time from the bus timetable information is equal to the alarm time. And a mobile communication terminal. 3. The plurality of first radio base stations and the plurality of first radio base stations.
A center station connected to a wireless base station through a network, and a wireless connection to a peripheral first wireless base station among the plurality of first wireless base stations and access to the center station via the base station, or A mobile communication terminal configured to be able to respond to a call from a center station, and a first database storing timetable information of each bus stop near the plurality of first radio base stations; The station has a function of, when connected to the mobile communication terminal, reading timetable information of the bus stop near the first wireless base station to which the terminal is wirelessly connected from the first database and transmitting the timetable information to the terminal. A wireless communication system comprising: 4. The mobile communication terminal according to claim 1, further comprising: a storage unit configured to store the time table information; a clock unit configured to output current time information; a notification unit; 4. The wireless communication system according to claim 3, further comprising: a control unit configured to determine whether or not to perform the notification by the notification unit and to operate the notification unit when the notification is determined to be performed. 5. A mobile communication terminal, comprising: storage means for storing the timetable information; setting means for setting an alarm time by a predetermined operation; notification means; and clock means for outputting a current time. 4. The wireless communication system according to claim 3, further comprising: control means for operating said notifying means when a value obtained by subtracting a current time from said time table information is equal to said alarm time. 6. A plurality of second radio base stations connected to the center station through a network, and wirelessly connected to a peripheral second radio base station of the plurality of second radio base stations via the base station. A route bus configured to be accessible to the center station or to be able to respond to a call from the center station;
A second database for storing position information of the second wireless base station, wherein the center station, when connected to the route bus, stores the position information of the second wireless base station to which the route bus is wirelessly connected. Receiving means for receiving from the second database;
The wireless communication system according to claim 3, further comprising an updating unit that updates timetable information in the first database based on the received position information. 7. A plurality of second wireless base stations connected to the center station through a network, and wirelessly connected to a peripheral second wireless base station among the plurality of second wireless base stations via the base station. The center station is configured to be accessible or capable of responding to a call from the center station, and has a position detecting means, and transmits position information when the access is made or when the call is answered. The center station updates the timetable information in the first database based on position information sent from the route bus when the center station is connected to the route bus. The wireless communication system according to claim 3, further comprising an updating unit. 8. The mobile communication terminal according to claim 3, wherein the center station has a function of transmitting the current position information of the route bus to the mobile communication terminal when connected to the mobile communication terminal. Wireless communication system. 9. The radio communication system according to claim 3, wherein said first radio base station also serves as said second radio base station. 10. The wireless communication system according to claim 7, wherein said position detecting means is a GPS receiver.