JP2003004474A - Portable terminal device and route guidance system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal device and a route guidance system, by which a route can be guided simply and precisely. SOLUTION: A navigation service center 150 grasps the present position by calling a portable telephone 110, it makes reference to map information on a base station whenever a user reaches a branch point, it creates a route guidance instruction statement on the basis of the present position and the destination, and it transmits the created route guidance instruction statement toward the portable telephone 110, by using a short message service. When the portable telephone 110 receives the instruction statement to be transmitted from the center 150, it displays the instruction statement. Consequently, the route can be guided by using the system by the portable telephone 110, and the user can reach the destination with ease.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal device having a wireless communication function and a route guidance system using this mobile terminal device.

[0002]

2. Description of the Related Art Conventionally, mobile phones such as PDC system and PHS
Simple mobile phones such as (Personal Handy phone System (registered trademark)) (hereinafter collectively referred to as mobile phones) have been used only for voice calls, but due to the recent increase in demand and increase in users. It has been applied to various fields such as not only voice communication but also packet communication, data communication by circuit switching, and interlocking with navigation.

[0003] For example, a mobile phone (conventional example 1) disclosed in Japanese Patent Laid-Open No. 11-014731 stores the base station identification numbers of a plurality of base stations around a destination or on a moving route to the destination. The storage unit compares the received one or more base station identification numbers with the plurality of base station identification numbers stored in the storage unit, and approaches the destination according to the number of matching base station identification signals. Is notified.

Further, in the navigation system for a mobile phone (conventional example 2) disclosed in Japanese Patent Laid-Open No. 9-199991, the name and position of a building in a jurisdiction area are associated with a telephone registration number, and The map of the surrounding area is stored based on the position of the building, the corresponding building is searched by the destination and the guidance request, and the navigation route is searched by the position information and the destination. In addition, it stores a plurality of voice instruction sentences for instructing navigation, asks a question for identifying the current position, and stores a plurality of question sentences for prompting an answer in a predetermined format. There is.

[0005]

However, the conventional method of using the portable terminal device as described above has the following problems.

That is, in the conventional example 1, by registering the identification numbers of a plurality of base stations and comparing these identification numbers with the receivable identification numbers, it is possible to know the approach situation (positional relationship) to the destination. It is not possible to perform accurate route guidance simply by enabling In addition, a storage unit for storing the identification numbers of the plurality of base stations, a comparison unit for comparing the identification numbers of the plurality of base stations with the receivable identification numbers, and a purpose according to the number of matching base station identification signals The existing mobile terminal device cannot be used as it is because it needs a notification means for reporting the approach to the ground.

[0007] In the conventional example 2, the user responds to the current position by answering a question from the navigation center, thereby notifying the current position to the navigation center, and further guiding the route (turning point). Etc.), it notifies the navigation center that it has arrived, and receives instructions for the next route guidance. Every time it arrives at the route guidance point until it arrives at the destination. Since the mobile terminal device itself can use the existing one because it interacts with the navigation center, it is difficult to reach the destination accurately and quickly. As described above, the above-mentioned two conventional techniques cannot simply and accurately guide the route.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a portable terminal device and a route guidance system which can easily and accurately guide a route.

[0009]

A portable terminal device of the present invention is provided for a desired destination registered in a service providing destination.
Receiving means for receiving the route guidance information sent from the service providing destination using the short message service of the mobile phone system, and display means for visually displaying the route guidance information received by the receiving means. , Is provided.

Further, the present invention is characterized by further comprising destination registration means for registering a desired destination with the service providing destination.

According to the present invention, the destination registration means is
It is characterized in that the destination is registered in the service providing destination by at least one of voice information and a short message.

Alternatively, the present invention comprises an internet browsing means for browsing internet contents, wherein the destination registration means accesses the site of the service providing destination by the internet browsing means to register the destination. Characterize.

The route guidance system of the present invention is provided in each of a plurality of areas constituting the mobile phone system and performs wireless communication with the mobile terminal device in the area under its control. When the base station is connected to the plurality of base stations and route guidance is performed, the current position of the mobile terminal device is grasped at each of the plurality of base stations, and the current position of the mobile terminal device and the mobile terminal device are detected. Based on the destination sent from the terminal device, the route guidance information is created by referring to the map information of the base station that controls the mobile terminal device, and the created route guidance information is used as a short message of the mobile phone system. And a navigation service center for transmitting to the mobile terminal device by using a service.

According to the present invention, the route guidance information is acquired by using the short message service and the information is visually displayed. Therefore, the user can use the mobile terminal device for the mobile terminal device. Can be provided as a lightweight, simple and accurate route guidance device. When the destination is registered by voice information, for example, with a mobile phone, the destination can be registered as if it were a normal call.
In addition, when the destination is registered by the short message using the short message service, for example, with a mobile phone, the destination can be surely registered without annoying the surroundings by speaking voice. In addition, when accessing the site of the service provider by Internet browsing means to register the destination, the destination can be registered while checking the map of the Internet contents on the site, and the route guidance device has excellent visibility. Is feasible.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a route guidance system according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a configuration of a mobile phone used in the route guidance system according to the present embodiment.

In FIG. 1, a route guidance system 100 according to the present embodiment comprises a plurality of base stations 1-1, 1-2, ... Which constitute a mobile telephone system, and these base stations 1-1, 1-.
Mobile phone 11 requesting route search via 2, ...
A navigation service center 150 that transmits a route guidance instruction sentence to a pedestrian 200 who holds 0 using a short message is provided.

The base stations 1-1, 1-2, ... Perform wireless communication with each mobile phone 110 while controlling the communication of the mobile phone 110, and can perform detailed route guidance to the pedestrian 200. It is arranged at intervals. In the current communication infrastructure, the cell radius of the base station is PHS (Persona).
l Handy phone System (registered trademark)) is 100 to 50
Since it is 0 m and the PDC method is 0.5 to 20 Km, it is difficult to perform fine guidance. By setting the cell radius of the station to be equal to or less than the cell radius of PHS (about 10 to 30 m), fine route guidance becomes possible.

In this route guidance system 100, each base station 1-1, 1-2, ... Stores map information of its own area under its jurisdiction as a database. This map information is available at the navigation service center 15
0 can always be referenced. The map information may have information corresponding to each base station on the side of the navigation service center 150. Each base station 1-
, 1-2 receive the signal for area registration transmitted from the mobile phone 110,
Determine whether or not is in your area of jurisdiction.

The navigation service center 150 is
When a request for route guidance information from the mobile phone 110 is recognized via a base station (eg, base station 1-1) that currently controls the mobile phone 110, the map information database of the base station 1-1 is accessed. Refer to map information. Then, when the pedestrian 200 carrying the mobile phone 110 performs an input designating a destination (a place where the pedestrian 200 is going), the input destination is registered.

After the destination is registered, the current position of the pedestrian 200 is grasped by at least one base station existing on the route to the destination, and the map database held by each base station is referred to to check the street position. The map guidance information such as the name is obtained to create a route guidance directive, and the created route guidance directive is transmitted to the mobile phone 110 using the short message service of the mobile phone system.

If the current position of the pedestrian 200 is within the area a under the jurisdiction of the base station 1-1, the navigation service center 150 refers to the map information database 1-1A of the area a, and the pedestrian 200 branches in the route guidance. To reach the point where When the pedestrian 200 reaches a branch point in the route guidance, the route after the branch point is transmitted to the mobile phone 110 using the short message service to guide the pedestrian 200.

Next, the structure of the mobile phone will be described with reference to FIG. The mobile phone 110 includes an antenna 111, an antenna shared unit 112, a transmission / reception unit 113, a key operation unit 114,
The speaker 115, the receiver 116, the microphone 117, the display unit 118, the display control unit 119, the memory 120, and the central control unit 121 are provided.

The antenna sharing unit 112 is provided with a transmission filter and a reception filter (not shown), and allows one antenna 111 to simultaneously use transmission and reception. The transmission / reception unit 113 modulates transmission data by a predetermined modulation method to generate a wireless signal for transmission, demodulates a received wireless signal to extract received data, and has a wireless communication circuit for transmission / reception. Consists of The key operation unit 114 has a plurality of keys for operating the mobile phone, and is configured to generate and output a key code for the operated key.

The speaker 115 is used to output a ring tone, output the voice of the other party, output a notification sound when the mobile phone 110 is used, and the like. The receiver 116 is used only for outputting the voice of the other party. The microphone 117 is used to input a voice of a user who uses the mobile phone 110. The display unit 118 has a display element such as an LCD (Liquid Crystal Display), and displays a telephone number of a callee or a callee, a mail message (including a short message), a clock or a calendar display, It is used for various displays related to the operation of the mobile phone, such as the display of the telephone directory and the display of the call history. The display unit 118 is a mobile phone 1
The front panel 10 is arranged substantially at the center. Display control unit 1
The control unit 19 controls to display the display data input from the central control unit 121 on the display unit 118.

The central controller 121 controls the RA of the memory 120.
While using M (Random Access Memory) as a working memory, ROM (Read Only Memo) of the memory 120 is used.
control each part of the device according to the program stored in ry). In particular, in the route guidance information acquisition, the user 200
When the user operates the key operation unit 114 to make an input requesting route guidance information to the navigation service center 150, a call is made to the navigation service center 150,
When the navigation service center 150 gives an instruction to input a destination and the user 200 inputs the destination, the destination is set to the navigation service center 150.
Send to. When the route guidance information is sent from the navigation service center 150 by the short message service after the destination information is sent, the control for displaying the information on the display unit 118 is performed.

Next, the operation of the navigation service center 150 of the route guidance system according to this embodiment will be described with reference to the flowchart shown in FIG. Here, assuming that the current position of the pedestrian 200 is within the jurisdiction area a of the base station 1-1, the base station 1-1 displays the mobile phone 110.
It is assumed that the current position of the pedestrian is grasped by receiving the signal from.

First, the navigation service center 15
In step S11, 0 is the map information database 1-1A of the base station 1-1 that currently manages the mobile phone 110.
To find the current position of the pedestrian 200. To grasp the current position, the area where the mobile phone 110 is currently located is recognized based on the information added to the incoming signal from the mobile phone 110, and the base that controls the area is recognized. Refer to the map information database of the station.
Next, in step S12, it is determined whether or not the destination is input, and the input is waited. In this case, the destination is input by voice information. That is, the pedestrian 200 inputs the destination to the navigation service center 150 by voice. Repeat this step and wait until you enter the destination.

If the destination is input, step S
Proceed to step 13 to register the input destination. Here, FIG. 4 is an explanatory diagram showing an example of a destination registration procedure. In addition,
In this figure, the MS of the sender is the mobile phone 110, N
V represents the navigation service center 150.

In FIG. 4, in step 1, the mobile phone 1
10 (MS) calls the navigation service center 150. In step 2, the navigation service center 150 (NV) sends a short message (“Register your current district name or nearest station”) to the mobile phone 1.
Send to 10. In step 3, the mobile phone 110
The pedestrian 200 who possesses (MS) inputs a voice of the current location (“ΔΔ station”). In procedure 4, the navigation service center 150 (NV) sends a short message (““ ΔΔ station ”, correct 1 or 0 if wrong” to the mobile phone 110).

In step 5, the mobile phone 110 (MS) key-inputs "1". In step 6, the navigation service center 150 (NV) sends a short message (“Please register the destination”) to the mobile phone 11.
Send towards 0. In step 7, the mobile phone 110
The pedestrian 200 who has the (MS) inputs a voice (“XX building”) of the destination.

In step 8, the navigation service center 150 (NV) directs a short message ("Is it" XX building ", 1 if correct, 0 if wrong") to the mobile phone 110. Send. In step 9, the mobile phone 110 (MS) key-inputs "1". In step 10, the navigation service center 150 (NV) sends a short message (“Navigation by short message starts”) to the mobile phone 110. In procedure 11, the mobile phone 110 (MS) receives the route guidance short message. All of steps 2 to 10 may be performed by a short message. Further, the messages from the navigation service center 150 (NV) in steps 2, 4, 6, 8, and 10 may be given by voice (synthesized voice or the like).

After the destination is registered, step S14
Then, the arrival of the current position of the pedestrian 200 at the branch point in the route guidance is monitored with reference to the map information database of the base station that controls the current position of the mobile phone 110. Then, in the route guidance, the pedestrian 200
When the vehicle arrives at a branch point, it refers to the map information database of the jurisdiction base station (adjacent base station if necessary) at that time, obtains map information such as the street name, and then routes guidance database 150A. Further, the instruction sentences are extracted and combined to create a short message (for example, "Turn right on XX street") (step S15). FIG. 5 shows an example of the route guidance instruction sentence.

After creating the short message for instructing the route, the short message is transmitted to the mobile phone 110 by the short message service (step S16).
Then, in the determination of step S17, steps S14 to S16 are repeated each time the branch point is reached until it is determined that the destination is reached. Then, when the vehicle finally arrives at the destination, the process is terminated and the route guidance is ended.

On the other hand, in the mobile phone 110, each time a short message is received from the navigation service center 150, the content is displayed on the display unit 118, or
Alternatively, audio is output from the speaker 115.

As described above, in the present embodiment, the navigation service center 150 grasps the current position of the mobile phone 110, refers to the map information of the base station, and generates a route guidance instruction sentence from the current position and the target position. The created route guidance instruction is sent to the mobile phone 110 using the short message service. Mobile phone 110
Upon receiving the route guidance instruction text sent from the navigation service center 150, the display instruction text is displayed on its own display unit 118, and the instruction voice is output to the speaker 115.
Output more.

Therefore, by using the short message service, the route guidance can be extremely easily provided by the mobile phone, and since the short message is stored in the mobile phone, the route guidance instruction is erroneously issued. The user can certainly reach the destination without overlooking.

Some modifications of this embodiment will be shown below. In the above-described embodiment, the present location and the destination are input to the navigation service center 150 by voice, but the mobile phone 110 may send a short message to the navigation service center 150 to input.

In the above embodiment, the mobile phone 11 is used.
0 and the navigation service center 150 are connected by a wireless communication line. However, if the mobile phone 110 has an internet browsing function, the internet can be used to access a dedicated navigation site that handles related information of the navigation service center 150 by the internet browsing means. It is also possible by connecting. In this case, the destination is registered in the navigation service center 150 not by voice but by accessing the navigation dedicated site and performing an input instruction operation on the display screen of the mobile phone 110. Since the route can be shown on the map by the Internet browsing function, it is possible to guide the route with excellent visibility and to easily and surely reach the destination.

In the above embodiment, in order to enable fine route guidance, a plurality of base stations 1-1, 1-2, ...
I arranged them at short intervals, but if the cell radius of the base station is large, use adaptive array technology,
It can be used by describing the route guidance directive in detail.

In the above embodiment, the PDC system or PHS mobile phone is taken as an example of the mobile terminal device.
Other types of mobile phones, PDs with wireless communication functions
It is also applicable to A (Personal Digital Assistants) and portable PCs (Personal Computers).

As described above, according to the present embodiment, by using the short message service applied to the mobile terminal device as one of the methods of using the mobile terminal device, the user who owns the short message service is lightweight. Therefore, it can be provided as a simple and accurate route guidance device. Also,
In a mobile terminal device having an internet browsing function, the route can be shown on a map and visually checked.
It can be provided as a route guidance device having excellent visibility.

[0042]

As described above, according to the present invention, as one of the methods of using a mobile terminal device, by using the short message service applied to the mobile terminal device, route guidance can be performed easily and accurately. It is possible to provide the possible mobile terminal device and route guidance system.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a route guidance system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a mobile phone used in the route guidance system according to the embodiment of the present invention.

FIG. 3 is a flowchart for explaining the operation of the route guidance system according to the embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an example of a destination registration procedure in the route guidance system according to the embodiment of the present invention.

FIG. 5 is an explanatory diagram showing an example of a route guidance command statement in the route guidance system according to the embodiment of the present invention.

[Explanation of symbols]

1-1, 1-2 Base station 1-1A, 1-2A map information database 100 route guidance system 110 mobile phone 111 antenna 112 Antenna common part 113 Transmitter / receiver 114 key operation part 115 speakers 116 receiver 117 Mike 118 display 119 Display control unit 120 memory 121 Central control unit 150 Navigation Service Center 150A Route guidance instruction database 200 pedestrians

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2F029 AA07 AB13 AC13 AC16 AC18                 5H180 AA21 BB05 EE01 FF03 FF13                       FF21 FF25 FF33                 5K067 AA21 BB04 BB36 DD53 EE02                       EE10 EE16 FF23 FF25 HH23                       JJ53 JJ54 KK15

Claims (5)

[Claims] 1. Receiving means for receiving route guidance information sent to the desired destination registered in the service providing destination from the service providing destination by using the short message service of the mobile phone system, A mobile terminal device comprising: a display unit that visually displays the route guidance information received by the receiving unit. 2. The mobile terminal device according to claim 1, further comprising destination registration means for registering a desired destination with respect to the service providing destination. 3. The mobile terminal device according to claim 2, wherein the destination registration means registers the destination with respect to the service providing destination by at least one of voice information and a short message. 4. An internet browsing means for browsing internet contents, wherein the destination registration means comprises:
The mobile terminal device according to claim 2, wherein the Internet browsing means accesses the site of the service providing destination to register the destination. 5. A plurality of base stations, each of which is provided in each of a plurality of areas constituting a mobile phone system and performs wireless communication with a mobile terminal device in a controlled area, and has a plurality of base stations having map information of its own area. When the mobile terminal device is connected to the base station of the mobile terminal device and performs route guidance, the current position of the mobile terminal device is grasped at each of the plurality of base stations, and the current position of the mobile terminal device and the mobile terminal device are sent. The route guidance information is created by referring to the map information of the base station that controls the mobile terminal device based on the destination, and the created route guidance information is stored in the short message service of the mobile phone system. A route guidance system comprising: a navigation service center for transmitting to a mobile terminal device.