JP2002208095A - Navigation method and positional information service system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and a system to obtain exact positional information of an individual by using a PHS and a navigation system and to reach the place of the positional information in short time. SOLUTION: This positional information service system to guide an owner of a navigation device to a place of an owner of a PHS terminal is constituted by providing a means to acquire the positional information of the PHS terminal and a means to transmit the positional information acquired in the means to acquire the positional information of the PHS terminal to the navigation device. The means to acquire the positional information of the PHS terminal is constituted so that the positional information of the PHS terminal is acquired by being repeated by every fixed period.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a navigation method, and in particular, to a PHS (Personal Handyphone System).
And GPS (Global Positioning)
System) and a navigation method using the navigation method.

[0002]

2. Description of the Related Art Conventionally, in order to call a mobile person at a distant place to oneself, for example, to arrange an ambulance, a taxi or other pick-up car, a telephone call and a conversation are used to inform the user of his / her position by words. I was Based on this explanation, the mobile person moves based on the memory and the map to reach the sender.

On the other hand, at present, PHS, which is a simple portable telephone system based on a digital cordless telephone, is widely used. This PHS technology achieves cost reduction and miniaturization by reducing the transmission output from the base station. Since the range covered by one base station is narrow, it is necessary to accurately detect the position of the terminal owner. Application is possible.

[0004] In addition, a navigation system for guiding a route to a destination when moving has been put into practical use. In this system, a current position can be detected using a GPS receiver or the like, route information to a designated destination can be displayed on a map, and a mobile person can be guided by text or voice.

[0005]

However, for example, when the owner A of the PHS terminal wants to be picked up by the owner B of the navigation system, the person A calls the person B using the PHS terminal. It is necessary to describe the present location in words, a process in which the person B enters the location as a destination in the navigation system, and travels to the person A according to the guidance of the navigation system.

[0006] In this process, when the person A explains the present location, it may be difficult to explain the accurate positional information to the person B in words. In particular, when there is no nearby building or the like, or when the area is unfamiliar to both AB, it takes time for the person B to understand the current location of the person A. In addition, if a misunderstanding occurs in the position identification of both parties and the call is hung up without solving the misunderstanding, it is difficult for both parties to encounter each other.

Also, if the PHS terminal holder A moves for some reason after calling the person B and notifying the current location, even if the person B goes to that point, the person A will be absent, and the two may encounter each other. Can not. In such a case, it is necessary for both parties to contact each other again and repeat the above process.

[0008] The present invention is intended to avoid such trouble and to ensure that both are met in a short time. By using a PHS and a navigation system, accurate location information of an individual is obtained and the location is obtained. It is an object of the present invention to provide a method and a system that can reach the target in a short time.

[0009]

In order to achieve this object, a method according to the present invention is a navigation method for guiding a mobile person to a person holding a PHS terminal.
The method includes a step of acquiring the position information of the HS terminal and a step of notifying the position information acquired here to the mobile terminal. As described above, since the PHS technology can accurately detect the position of the terminal owner, the position can be detected more quickly and accurately than described in a word where the range tends to be ambiguous, and the moving person can be shortened. It will be possible to dispatch to the place in time.

In this method, it is desirable to repeat the process of acquiring the position information of the PHS terminal, and to notify the mobile terminal of the appropriately corrected position information even when the PHS terminal holder moves. By performing the processing in this manner, even when the PHS terminal owner is moving, the mobile person can reach the PHS terminal owner by referring to the corrected position information as needed.

The step of obtaining the position information of the PHS terminal is performed by obtaining information of a base station which is communicating with the terminal at that time. Thus, the accurate position of the PHS terminal owner can be detected.

Further, the step of notifying the mobile user of the location information includes the step of transmitting the PHS to the information communication terminal possessed by the mobile user.
It is performed by transmitting terminal location information. Here, it is desirable that the information communication terminal of the mobile terminal can display the map data. For example, if the current position of the PHS terminal is indicated on a map displayed on the information communication terminal possessed by the mobile user, the mobile user can easily move and move quickly.

Here, the P transmitted to the information communication terminal is
It is desirable that the location information of the HS terminal includes map data. Conventionally, navigation systems have been used to display destinations on a map, but rather than the information and communication terminals of mobile users having a wide range of map data in advance, the map data is stored centrally at the center, By transmitting the required range of map data together with the position data of the PHS terminal to the information and communication terminal of the mobile terminal, the information and communication terminal carried by the mobile terminal can be made simpler to reduce the weight and cost. Can be achieved. In addition, by centrally managing the map data in the center, it is possible to easily and accurately update the map data and the like.

[0014] Further, it is desirable that the information communication terminal has a GPS receiving function, and a journey to a current position of the PHS terminal is displayed on a map. It is convenient to use a conventional navigation system to make the system recognize the current location of the PHS terminal and also detect the position of the mobile terminal so that the mobile terminal can move while showing a detailed route to the mobile terminal.

On the other hand, a position information providing system according to the present invention for achieving the above method is a position information providing system for guiding a navigation device holder to a PHS terminal holder, wherein the position of the PHS terminal is It is characterized by comprising means for acquiring information and means for transmitting the position information acquired here to the navigation device.

[0016] The means for acquiring the location information of the PHS terminal repeatedly acquires the location information of the PHS terminal at regular intervals.

[0017] The means for acquiring the position information of the PHS terminal acquires the position information of the PHS terminal by acquiring information of a base station which is communicating with the terminal at that time. Preferably, the navigation device is capable of displaying map data.

Further, the navigation device may be a GPS.
It has a receiving function, and notifies the navigation device holder of the journey from the current position to the PHS terminal holder.

[0019]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a diagram showing a configuration of an embodiment of a position information providing system according to the present invention. As shown in FIG. 1, a location information providing system 10 according to the present embodiment includes a transmitting / receiving unit 11, a processing unit 12
And storage means 13.

The transmitting / receiving unit 11 has a function of transmitting / receiving information to / from the PHS central base station 20 and the information communication terminal 30 of the mobile B. The PHS central base station 20 transmits and receives signals to and from the PHS terminal 40 via the base stations 20a to 20c installed at a plurality of points. This central base station 20 is the base station 2
PHS based on the arrangement of Nos. 0a to 20c and the reception radio wave condition from PHS terminal 40 with respect to the output intensity of each base station, etc.
It has a function of detecting an accurate position of the terminal 40 and notifying the position information providing system 10. Since this function is a known technique, further detailed description will be omitted.

The processing section 12 of the location information providing system 10 controls various operations of the present system, and performs processing for transmitting the location of the PHS terminal 40 to the communication terminal 30 of the mobile B. The storage unit 13 stores information about the PHS terminal owner A and the mobile user B, which are service users registered in advance by contract or the like, and an agreed charging form. Alternatively, information may be constantly obtained from the PHS central base station 20 and information as to which PHS terminal is at which position may be stored at any time.

On the other hand, although not shown in detail, the information communication terminal 30 of the mobile user B includes a navigation system including at least a GPS receiver, and a wireless communication unit for transmitting and receiving information to and from the position information providing system 10. The navigation system is a CD-ROM storing map data in a predetermined range.
A storage medium such as a ROM is provided, receives a signal from a GPS satellite, recognizes the current location, searches for the shortest or fastest way to the destination, and teaches the mobile B. The teaching of this route is performed by highlighting a route on a map, instructing a building or a turning point as a landmark by voice, or by using a technique used in a known navigation system.
The information communication terminal 30 has a PHS communication function,
PHS via an appropriate PHS base station (20a in FIG. 1)
It can communicate with the terminal 40.

An example of the processing flow of this embodiment is as follows.
This will be described below with reference to the flowchart shown in FIG. For example, when the PHS terminal holder A wants to bring the mobile B to himself, the terminal holder A transmits a call to the mobile B from the PHS terminal 40 and notifies the fact. The information communication terminal 30 receiving this accesses the position information providing system 10,
The PHS terminal 40 is designated to request provision of location information (step S1). Here, the PHS terminal 40 is specified by a telephone number, a user name, or the like. When receiving this request, the position information providing system 10
0 position information is acquired (step S2). Where P
If the position information of the HS terminal 40 is obtained from the PHS central base station 20 or the system 10 constantly obtains the position information of each PHS terminal from the central base station 20 continuously,
The current position information of the terminal 40 stored in its own storage means 13 is read and obtained.

Next, the position information providing system 10
The information about the current location of the S terminal 20 is sent to the information communication terminal 30 of the mobile B (step S3). In the information communication terminal 30, the navigation system takes in this information, searches for the shortest route with the location of the terminal 40 as the destination, and displays it on the display screen (step S4). Thereafter, the mobile user B can reach the terminal owner A by following the route presented by the navigation system.

Next, another embodiment of the present invention will be described with reference to FIGS. In this embodiment, the location information providing system 10 centrally manages the map data,
It is possible to cope with a case where the PHS terminal 40 moves during the navigation. In the present embodiment, the information processing terminal 30 of the mobile B does not have its own map data,
Instead, the map data of at least the entire PHS service range is registered in the storage unit 13 of the position information providing system 10. In addition, the processing unit 12 of the system 10 can extract detailed map data in a necessary range as needed and send it to the communication terminal 30 of the mobile user B. The map data 13 is updated every predetermined period, and it is desirable that the map data 13 is maintained so that the latest information is always reflected.

The operation of this embodiment is shown in the flowchart of FIG. When the mobile user B receives a call request from the PHS terminal owner A, the information communication terminal 30 grasps its own current position from a signal received from the GPS satellite 50, notifies the current position, and notifies the position information providing system to the PHS terminal 40. Is requested (step S11). The system 10 having received this acquires the position information of the terminal 40 from the PHS central base station 20 or by referring to the storage unit 13 (step S12).

Next, the system 10 extracts the position information of the PHS terminal 40 and the map data from the current location of the mobile B notified to the location of the PHS terminal 4 notified in step S11, and sends them to the information communication terminal 30. (Step S13).
The centralized management of the map data by the position information providing system 10 achieves simplification and cost reduction of the information communication terminal 30 of the mobile user B, and can cope with updating of buildings and stores. The information communication terminal 30 takes this information into the navigation system, searches for the shortest route and displays it on the screen, or optionally gives a route instruction to the user B by voice or the like (step S).
14).

Thereafter, the mobile user B moves in accordance with the instruction of the navigation system, and when reaching the location of the PHS terminal 40, notifies the location information providing system 10 of that (step S15). Here, the information communication terminal 30
Is a P registered as a destination in the navigation system
When the location of the HS terminal coincides with the location of the self detected from the GPS receiver, it is determined that the location of the PHS terminal has been reached.

The system 10 checks the presence or absence of the arrival notification at predetermined intervals, and terminates the processing if the arrival notification is received (step S16). If the arrival notification has not been received, the process returns to step S12, where the position information of the terminal 40 is acquired again and the information
Send to The information communication terminal 30 captures this information,
The shortest route is searched again and displayed to the user B. here,
If the location of the terminal 40 has not changed from the previous one, the route remains the same, but if the holder of the PHS terminal 40 moves, the acquired terminal location is changed and a new PH
A route search is performed using the location of the S terminal as a destination. By performing the processing as described above, for example, even when the holder of the PHS terminal 40 moves after issuing a request to the mobile B, the navigation can always be performed with the new terminal location as the destination. Therefore, it is possible to avoid a problem that the PHS terminal holder A moves and is absent even if the mobile B arrives at the initially set destination.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and appropriate changes can be made according to the working environment and the purpose. For example, the information communication terminal 30 of the mobile B may perform position detection using PHS instead of GPS.

[0031]

As apparent from the above, according to the navigation method and the position information providing system of the present invention,
By using PHS to obtain accurate location information and registering it as a destination for a navigation system, it is possible to dispatch a mobile person to that location in a shorter time than in the case where the range is described in words that tend to be ambiguous. It becomes possible.

Further, by repeatedly performing the position detection of the PHS terminal, even when the PHS terminal owner is moving, the user can reach the PHS terminal owner by referring to the corrected position information as needed. can do. Further, by centrally managing the map data referred to by the mobile station by the location information providing system, which is a fixed station, the information communication terminal carried by the mobile station can be simplified and the weight and cost can be reduced. it can.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a flowchart illustrating the operation of the first embodiment of the present invention.

FIG. 3 is a flowchart illustrating the operation of the second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 Location information providing system 20 PHS central base station 30 Information communication terminal 40 PHS terminal 50 GPS satellite

 ──────────────────────────────────────────────────続 き Continuing on the front page F term (reference) 2C032 HB25 HC08 HD12 2F029 AA02 AB13 AC02 AC08 AC14 5H180 AA01 BB05 FF05 FF13 5K067 AA34 AA41 AA42 BB04 BB36 CC22 DD42 DD44 EE02 EE10 EE24 FF03 JJ23 FF23 H56

Claims (12)

[Claims] 1. A navigation method for guiding a mobile user to a person who has a PHS terminal, the method comprising: obtaining position information of the PHS terminal; and notifying the mobile user of the obtained position information. A navigation method comprising: 2. The navigation method according to claim 1, wherein the process of acquiring the location information of the PHS terminal is repeated, and the location information corrected as appropriate even when the PHS terminal holder moves is notified to the mobile user. A navigation method characterized by: 3. The navigation method according to claim 1, wherein the step of acquiring the position information of the PHS terminal is performed by acquiring information of a base station which is communicating with the terminal at that time. A navigation method characterized in that: 4. The navigation method according to claim 1, wherein the step of notifying the mobile user of the position information includes transmitting the position information of the PHS terminal to an information communication terminal possessed by the mobile user. A navigation method characterized by performing the following. 5. The navigation method according to claim 4, wherein the information communication terminal possessed by the mobile user can display map data. 6. The navigation method according to claim 5, wherein the position information of the PHS terminal transmitted to the information communication terminal includes map data. 7. The navigation method according to claim 5, wherein the information communication terminal has a GPS reception function, and a route to a current position of the PHS terminal is displayed on a map. Navigation method. 8. A position information providing system for guiding a navigation device holder to a PHS terminal holder, wherein: a means for obtaining the position information of the PHS terminal; Means for transmitting information to a location information providing system. 9. The position information providing system according to claim 7, wherein the means for acquiring the position information of the PHS terminal repeatedly acquires the position information of the PHS terminal at regular intervals. . 10. The PHS terminal according to claim 8, wherein the means for acquiring the position information of the PHS terminal acquires the information of a base station which is communicating with the terminal at the time. A location information providing system for acquiring location information of a terminal. 11. The position information providing system according to claim 8, wherein the navigation device is capable of displaying map data. 12. The navigation device according to claim 8, wherein the navigation device has a GPS receiving function, and notifies the navigation device holder of a journey from a current position to the PHS terminal holder. A position information providing system, characterized in that: