JPH0965416A - Method and device for position recognition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a position recognition method in which a traveller or the like carries its device simply and is able to recognize its position even at a place in an underground market. SOLUTION: A slave set 2 receives the code of a master set 1 sent from the master set 1 in a personal handy phone system and position information is decoded based on the code and then the position of the slave set 2, that is, a current position of the user is recognized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position recognition method and a position recognition device using PHS.

[0002]

2. Description of the Related Art Recently, as a device for recognizing the current position, there is a car navigation system, that is, a recognition device utilizing a GPS (Global Positioning System).

[0003]

As described above, the GP
According to the recognition device using S, in order to recognize the position,
Since the position information is obtained by the radio waves from GPS satellites launched into space, it cannot be used in areas where radio waves do not reach, that is, tunnels, underground malls, and the like.

Therefore, an object of the present invention is to provide a position recognizing method and a position recognizing device which can be easily carried by a traveler or the like and can recognize the position even in an underground mall.

[0005]

In order to solve the above-mentioned problems, the position recognition method of the present invention is such that the slave unit receives the code of the master unit transmitted from the master unit in the personal handyphone system. This is a method of recognizing the position of the handset by decoding the position information based on the code.

In order to solve the above problems, the position recognition device of the present invention has a function of receiving the code of the master unit transmitted from the master unit in the personal handyphone system and decoding the position information. It was carried by the machine.

Further, in the above position recognizing device, by transmitting predetermined information or the code of the parent machine from the child machine to the parent machine, multimedia information regarding guidance etc. is transmitted to the parent machine via the parent machine. It is made to be able to receive.

According to each of the above constructions, the handset unit of the personal handyphone system is used to obtain the current position information. Therefore, it can be used not only on the ground but also in an underground mall. .

Further, by connecting the guidance information database to the master unit of the personal handyphone system, the slave unit can obtain related information other than the position, for example, multimedia information such as voices, characters and figures. You can

[0010]

Embodiments of the present invention will be described below with reference to the drawings. The position recognition according to the present invention utilizes a personal handyphone system (hereinafter, simply referred to as PHS).

As shown in FIG. 1, the master unit (master station) 1 in the PHS is installed in, for example, a public telephone or an underground mall, and the reception range of the slave unit 2 is as narrow as about 100 m. It is installed in.

Each of the base units 1 is connected to a switching center 4 in a communication line 3 via a telephone line (or ISDN line) 5, and the connection between the base unit 1 and the handset unit 2 is
It is centrally managed by the management database 11 on the network, and the recognition code of the master device 1 is always transmitted from the master device 1 to the slave device 2.

Each slave unit 2 is provided with a function of decoding a code transmitted from the master unit 1, and a code database (also referred to as a codebook) showing position information of the master unit 1 corresponding to this code. 12) are provided.

According to the above configuration, for example, when a traveler has the child device 2 and wants to know his / her current position, the recognition code from the parent device 1 is received and the corresponding code is dealt with. By displaying the position of the parent device 1 from the code database 12 indicating the position information of the parent device 1, the position of the child device 2, that is, its own position can be recognized with an accuracy of about 100 m.

In this way, using the PHS slave unit 2,
Since the current position information is obtained, it can be used on the ground and underground malls, etc. Therefore, the range of use becomes very wide compared to the case of using GPS, and special GPS such as GPS can be used. It is easy to use because it does not require a detector. In addition, even if the traveler is walking, it can be used without any problems.

The accuracy of the position information is the installation interval of the base unit 1, that is, about 100 m, but it is sufficient information for a traveler or the like to know the current position. Further, in the PHS, since a digital line having a transmission rate of 32 kbps is used, not only voice but also data communication of images and the like is possible.

That is, as shown in FIG. 2, a travel guide information database 13 is connected to the telephone line 5 of the base unit 1, and predetermined information, for example, a signal for obtaining the current guide information is sent to the handset unit. 2 to the base unit 1, and based on the code sent from the base unit 1, guide data (voice, character and image data around the base unit 1 from the guide information database 13 such as a position guide including a map). , Guidance of the nearest transportation means, shopping guide, entertainment guide, accommodation guide, guide of public facilities, etc.) are transmitted to the child device 2 and displayed.

Of course, in the above-mentioned usage form, instead of transmitting the signal for acquiring the current guidance information from the slave unit 2, the recognition code of the master unit 1 may be transmitted. As another usage mode, as shown in FIG.
By installing a position management station 14 that manages the positions of a plurality of slave units 2, a position monitoring / dispatching system for vehicles such as taxis and trucks, and a salesman's patrol position monitoring /
There is a circuit decision support system and a lost child search system.

[0019]

As described above, according to the position recognition method and the position recognition device of the present invention, the personal handyphone
Since the current position information is obtained by using the slave unit of the system, it can be used not only on the ground but also in tunnels, underground malls, etc.
Compared with the case of using, the range of use is very wide, and a special detection device such as GPS is not required, so that it is easy to use.

By connecting the guidance information database to the master unit of the personal handyphone system, the slave unit can obtain related information other than the position, for example, multimedia information such as voices, characters, and figures. You can

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a position recognition device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a main part of a modified example of the position recognition device.

FIG. 3 is a block diagram showing a configuration of a main part of another modification of the position recognition device.

[Explanation of symbols]

 1 Master unit 2 Slave unit 5 Telephone line 11 Management database 12 Code database 13 Guidance information database 14 Location management station

Claims (3)

[Claims] 1. The position of the slave unit is recognized by receiving the code of the master unit transmitted from the master unit in the personal handyphone system and decoding the position information based on this code. A position recognition method characterized by: 2. A position recognition device, wherein a slave unit has a function of receiving a code of the master unit transmitted from the master unit in the personal handyphone system and decoding the position information. 3. By transmitting predetermined information or a code of the parent device from the child device to the parent device, multimedia information regarding guidance or the like can be received by the child device from the guidance information database via the parent device. The position recognition device according to claim 2, wherein the position recognition device is configured as described above.