KR20010091987A - System and method for detecting Location of Mobile station - Google Patents

Abstract

PURPOSE: To provide a detection system, for the position of a mobile station, by which the position on the latitude and the longitude of the mobile station can be displayed on a car navigation apparatus easily and without increasing a system constitution. CONSTITUTION: The detection system comprises the car navigation apparatus 1 with a communication function. The system comprises a first portable telephone set 2. The system comprises a second portable telephone set 13 which is connected to the apparatus 1 with the communication function. The system comprises a server SV which is connected to a public network N. The system compress a plurality of base stations 4 which can communication with the telephone set 2. The system comprises a car-navigation-side base station 3 which can communicate with the telephone set 13. The telephone 2 transmits IDs of the plurality of base stations and receiving field strengths of radio waves of the plurality of base stations to the telephone set 13. The telephone set 13 transmits the transmitted IDs and the receiving field strengths to the server, and it receives latitude and longitude information on the telephone set 2. The car navigation apparatus receives the latitude and longitude information from the telephone set 13 so as to be displayed on a display device.

Description

Mobile station location detection system and its method {System and method for detecting Location of Mobile station}

The present invention relates to a mobile station position detection system and a method thereof, and more particularly, to a mobile station position detection system including a vehicle navigation apparatus having a communication function.

Recently, as portable telephones such as personal handy phone system (PHS) telephones are widely used, the use of a system for notifying a user's current location using a portable telephone has been widened.

As a system for detecting the current position of such a portable telephone, for example, there is one described in Japanese Patent Laid-Open No. 11-178039.

In this system, a center station that has registered an ID for identifying a base station and latitude and longitude information showing the location of the base station is connected to a plurality of (usually three) base stations from a mobile station (e.g., a PHS telephone) through a public network. Obtain the ID and the received electric field strength of each base station radio wave. Based on the acquired data and the latitude and longitude information, the center station detects a position on the latitude and longitude of the mobile station.

In such a mobile station position detection system, the position on the latitude and longitude of the mobile station is detected at the center station. Therefore, in order for the user to know the position on the latitude and longitude of the mobile station, it is necessary to receive notification of the position from the center station by telephone or facsimile. That is, it is difficult for the user to know on the spot the position on the latitude and longitude of the mobile station. In addition, it is necessary for the user to visualize using a facsimile or the like in order to clearly know the position of the mobile station. In addition, in a mobile body such as an automobile, installation and operation of an apparatus for clearly viewing are inconvenient.

SUMMARY OF THE INVENTION In view of the above-described problems, the present invention provides a mobile station position detection system that can easily display a position on the latitude and longitude of a mobile station on a terminal of a mobile body such as an automobile navigation apparatus without greatly increasing the apparatus constituting the system. The purpose is to provide.

The mobile station position detection system of the present invention,

(a) a terminal device of a mobile body such as an automobile navigation terminal having a communication function;

(b) a first portable telephone as a mobile station;

(c) a second portable telephone connected to the mobile terminal;

(d) a server connected to the public network;

(e) a plurality of base stations in communication with the first portable telephone; And

(f) A mobile communication base station, such as an automobile navigation base station, which communicates with a second portable telephone.

Further, the first portable telephone transmits to the second portable telephone: i) an ID for identifying a plurality of base stations which have received and detected radio waves from a plurality of base stations, and ii) a reception electric field strength of radio waves from the plurality of base stations.

The second portable telephone transmits the ID transmitted from the first portable telephone and the received electric field strength to the server through the mobile communication base station and the public network.

Next, the second portable telephone receives latitude and longitude information showing the latitude and longitude at which the first portable telephone is located from the server via the public network and the mobile communication base station.

The terminal device of the mobile body receives the latitude and longitude information from the second portable telephone and displays it on the display device.

In this way, it is possible to obtain a mobile station position detection system that can easily display the position on the latitude and longitude of the mobile station on a terminal device of a mobile body such as a car navigation system without increasing the system configuration.

1 is a block diagram showing a general mobile station position detection system.

2 is a block diagram showing a car navigation device with a communication function.

Fig. 3A is a functional block diagram showing a function realization means of the first portable telephone.

Fig. 3 (b) is a functional block diagram showing the function realization means of the second portable telephone.

FIG. 3 (c) is a functional block diagram showing a function realization means of a central processing unit (CPU). FIG.

4 is a flow chart showing operation of a first portable telephone as a mobile station.

5 is a flow chart showing operation of the second portable telephone.

6 is a flow chart showing operation of the second portable telephone.

7 is a flowchart showing the operation of the vehicle navigation apparatus with a communication function.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described using FIGS.

In Fig. 1, the mobile station position detection system is configured as follows.

The automobile navigation apparatus 1 with a communication function is connected to the 2nd portable telephone 13 (for example, PHS telephone).

The first portable telephone 2 (e.g., PHS telephone) as a mobile station has an antenna 2a. The plurality of base stations 4 have an antenna 4a.

The base station 3 (car navigation base station) has an antenna 3a and can communicate with the second portable telephone 13.

The second portable telephone 13 includes an antenna 13a, a history memory 13b, and a display portion 13c of the portable telephone. The history memory 13b stores information showing the history of the communication, and also registers the history information with the location information received from the first portable telephone 2 attached thereto. The display unit 13c displays the history information to which the location information is attached.

The base station 3 (vehicle navigation base station), the plurality of base stations 4, and the server 52 are connected to the public network 50.

2 is a block diagram showing a vehicle navigation apparatus 1 with a communication function.

In FIG. 2, the automobile navigation apparatus 1 is comprised as follows.

Using the input device 5, the user inputs an operation command or the like. The CPU (Central Processing Unit) 6 controls the operation of the vehicle navigation apparatus.

The antenna 7 receives navigation propagation from a Global Processing System (GPS) satellite.

The GPS receiver 8 measures the position of the vehicle provided with the vehicle navigation apparatus 1 by GPS and outputs the position information of the vehicle.

The autonomous navigation unit 9 detects the speed of the vehicle and the inclination of the left and right, and measures the position of the vehicle even in a tunnel or the like which cannot receive navigation radio waves from the GPS satellites.

The interface 10 (I / F) 10 combines the input from the GPS receiver 8 and the input from the autonomous navigation unit 9 and converts it into data that can be input and output to the CPU 6.

The audio output control device 12 performs audio output control based on a command from the CPU 6.

The speaker 11 outputs this sound. The second portable telephone 13 is the same portable telephone as in FIG.

The portable telephone 13 of FIG. 2 includes an antenna 13a, a history memory 13b identical to FIG. 1, and a display portion 13c identical to FIG.

The communication control device 14 performs data transmission and reception control based on an instruction from the CPU 6.

The FM tuner 16 transmits and receives an FM signal by the antenna 15.

The FM multiplexing IC 17 multiplexes the FM signal.

The ROM 18 stores a program for controlling the CPU 6, graphic data displayed on the display device 24 described later, and the like.

The RAM 19 stores data temporarily generated during the operation of the CPU 6.

The CD-ROM drive 20 reads out information stored in the CD-ROM 21 and outputs it. The CD-ROM 21 records information including map information.

The graphic controller 22 performs screen display processing of the display device 24 described next based on the information including the input image information.

The video RAM 23 temporarily stores the image data input from the graphic controller 22 and displayed on the display device 24.

The display device 24 displays the processing result of the CPU 6.

The bus line 25 includes an input device 5, a CPU 6, an interface unit 10, an audio output control device 12, a communication control device 14, an FM multiplexing IC 17, and a ROM 18. The RAM 19, the CD-ROM drive 20, and the graphic controller 22 are commonly connected.

In FIG. 1, FIG. 2, the 2nd portable telephone 13 is connected to the communication control apparatus 14 of the automobile navigation apparatus 1 with a communication function. The telephone 13 performs data transmission and reception with the CPU 6 via this communication control device 14 and also communicates with the server 52 via the base station 3 and the public network 50.

On the other hand, the first portable telephone 2 communicates with the second portable telephone 13 via the base station 4, the public network 50, and the base station 3. The portable telephones 2 and 13 receive an ID showing the identification of the base station from the base stations 4 and 3, and also receive a Radio Signal Strength Indicator (RSSI), which is a reception strength of radio waves from the base stations 4 and 3. ) Detect the signal.

Further, the server 52 registers ID and latitude and longitude information of the base stations 3 and 4.

The server 52 acquires the received electric field strength of the base station radio wave in the mobile station, and obtains latitude and longitude information of the mobile station (here, the first portable telephone 2) that has received the radio wave from the base station.

3 (a) is a functional block diagram showing the function realization means of the present invention of the first portable telephone 2. 3 (b) is a functional block diagram showing the function realization means of the present invention of the second portable telephone 13.

3 (c) is a functional block diagram showing a function realization means of the present invention of the central processing unit (CPU) 6.

In Figs. 3 (a) to 3 (c), the function of each block is as follows.

The 1st determination part 201 determines the presence or absence of the transmission instruction from the 2nd portable telephone 13 of the history information with positional information which is history information containing a positional information.

When the first determining unit 201 determines that there has been a transmission instruction, the transmitting unit 202 transmits the history information with the location information attached to the second portable telephone 13.

The second determination unit 131 determines whether or not the history information to which the location information is attached is received.

The registration unit 132 registers the history information with the location information attached to the history memory 13b.

The first display unit 133 displays the history information with the position information registered in the history memory 13b on the display unit 13c.

The designation unit 134 designates the history information with the position information as the object to be converted into latitude and longitude information from among the history information with the displayed position information.

The converting unit 135 converts the positional information of the history information with the designated positional information into latitude and longitude information through the server 52, and then registers it in the history memory 13b.

The history information request unit 61 requests and receives a predetermined number of history information from the second portable telephone 13.

The third judging unit 62 determines whether or not there is history information to which position information is attached among the predetermined number of history information.

The selecting unit 63 selects history information to which position information is attached from a predetermined number of history information.

The change request unit 64 converts the position information of the history information to which the position information determined by the third determination unit 62 is attached has not yet been converted to latitude and longitude information for the second portable telephone 13. Requires.

The second display unit 65 displays the position of the first portable telephone 2 on the display device 24 based on the latitude and longitude information of the history information with the positional information attached thereto.

3 (a) to 3 (c), the first determining unit 201 and the transmitting unit 202 are realized by a CPU (not shown) of the first portable telephone 2 executing a storing program. Function means.

Each unit 131 to 135 is a function realization means realized by a CPU (not shown) of the second portable telephone 13 executing a storage program.

Each part 61-65 is a function realization means implemented by the central processing unit 6 of the vehicle navigation apparatus 1 with a communication function executing a storing program to ROM18.

The operation of the mobile station position detection system configured as described above will be described with reference to Figs.

4 is a flowchart showing the operation of the first portable telephone 2 as a mobile station. 5 and 6 are flowcharts showing the operation of the second portable telephone 13. 7 is a flowchart showing the operation of the vehicle navigation apparatus 1 with a communication function.

In FIG. 4, the first determination unit 201 of the first portable telephone 2 transmits the history information with position information including the base station ID and the received electric field strength of the base station radio wave to the second portable telephone 13. Whether it is indicated (S1),

If it is determined that there is a transmission instruction, the transmitting unit 202 transmits the history information with the positional information to the second portable telephone 13 (S2).

Here, for example, the transmission instruction button (not shown) of the first portable telephone 2 is pressed to transmit the history information with the position information to the second portable telephone 13.

Next, in Fig. 5, the second determination unit 131 of the second portable telephone 13 determines whether or not the history information with the positional information is received (S11),

If it is determined that the information has been received, the registration unit 132 registers the history information with the received position information in the history memory 13b (S12).

The history information with the location information registered in the history memory 13b includes the base station ID and the received electric field strength of the base station radio waves described above. Further, the history information with the positional information may include latitude and longitude information of the first portable telephone 2 as the mobile station. In other words, the history information to which the positional information is attached may or may not include latitude and longitude information of the mobile station.

In addition, simply referred to position information means base station ID information and received field strength information of base station radio waves.

Next, the operation of converting the position information into latitude and longitude information in the second portable telephone 13 will be described with reference to FIG. 6.

In FIG. 6, first, for example, by the display instruction by the push button, the first display unit 133 displays a list of history information (S21).

Some of the history information simply includes call history information and does not include location information.

Next, the designation unit 134 designates the history information to which the position information to be converted to the latitude and longitude information is attached among the displayed history information (S22).

Next, the conversion unit 135 sends a message to the server 52 through the base station 3 and the public network 50 together with the designated location information to request a conversion of the location information (designated location information) of the history information with the designated location information. ) And (S23),

After converting the designated location information into latitude and longitude information in the server 52, and receives the latitude and longitude information transmitted from the server 52 (S24),

It registers in the history memory 13b (S25).

The first display unit 133 displays the received latitude and longitude information (S26).

Next, the operation of the vehicle navigation apparatus 1 with a communication function will be described with reference to FIG.

In Fig. 7, first, for example, in response to an instruction from the input device 5, the history information requesting unit 61 transmits a predetermined number (e.g., 10) of history information to a second portable telephone (car navigation apparatus side telephone). To (13) (S31),

A predetermined number of history information is received from the second portable telephone 13 (S32).

Next, the third judging unit 62 determines whether or not there is history information to which the position information is attached in the predetermined number of history information (S33).

If it is determined that there is no history information with the positional information attached thereto, this processing ends.

If it is determined that there is the history information with the positional information attached thereto, the selecting unit 63 displays the history information with the positional information on the display device 24 (S34),

Select history information with the location information to display the location on the latitude and longitude (S35),

Next, the third determination unit 62 determines whether the end button has been pressed (S36),

If it is determined that it has been pressed, the process ends. If it is determined that it is not pressed, the third determination unit 62 determines whether or not the position information (called the selected position information) of the history information to which the selected position information is attached has already been converted to latitude longitude information (S37).

When the selected positional information has already been converted to latitude and longitude information, the second display portion 65 displays both the position of the mobile station 2 (the telephone to be detected by the position) and the vehicle position provided with the vehicle navigation apparatus. A map capable of being displayed is displayed on the display device 24 (S38),

A mark is displayed on the latitude and longitude showing the position of the mobile station 2 (S39).

By this mark indication, the position of the mobile station (first portable telephone) 2 can be visually recognized and the position can be clearly understood.

In step S37, when it is determined that the selection position information has not yet been converted to latitude and longitude information, the conversion request unit 64 requests the second portable telephone 13 to convert the selection position information into latitude and longitude information. (S40),

Receiving this request, the second portable telephone 13 transmits the latitude and longitude information obtained by performing the operation shown in FIG. 6 to the vehicle navigation apparatus 1 with a communication function. The car navigation apparatus 1 with a communication function receives this latitude longitude information (S41).

The received latitude and longitude information is displayed as shown in steps S38 and S39 described above.

In the present embodiment, both of the position of the mobile station 2 and the position of the vehicle are displayed in steps S38 and S39. However, only the mobile station 2 may be enlarged and displayed.

In the present embodiment, the terminal has been described by the automobile navigation apparatus 1, but the terminal for displaying is not limited to the automobile navigation apparatus and can be applied to the present invention as long as it is a terminal apparatus having a display unit.

And if it is a portable terminal device, it can use as pedestrian navigation etc.

In the present embodiment, the server 52 converts the position information including the base station ID and the received electric field strength of the base station radio wave to latitude and longitude information.

Further, data including a conversion table for converting the position information into latitude and longitude information is downloaded from the server 52 to the second portable telephone 13 or the vehicle navigation apparatus 1 with a communication function, and these apparatuses are then downloaded. The position information including the base station ID and the received electric field strength of the base station radio wave can be converted into latitude longitude information.

Accordingly, the position information can be obtained by the second portable telephone 13 or the vehicle navigation apparatus 1 with a communication function without passing through the server 52.

In addition, the automobile navigation apparatus 1 may be a device integrated with the second portable telephone 13.

In addition, when displaying the position of the mobile station 2, the error range may also be displayed. This can be realized by the server 52 transmitting the latitude and longitude information and the reliability data to the second portable telephone 13 in correspondence with how many base stations the mobile station 2 has received.

For example, when the mobile station 2 is not receiving radio waves of only one base station, the reliability of the measured value of the position is low. When the radio stations of three base stations are received, three-point surveying is possible, so that the reliability is high. At that time, the server 52 transmits reliability data showing whether the reliability of the measurement of the position is low or high.

This reliability data can also be transmitted from the mobile station 2. According to this data, for example, the vehicle navigation apparatus 1 equipped with the communication function displays a circle with a radius of 100 m around the position of the mobile station 2 as the error range when the reliability is high, and the reliability is low. In this case, a circle with a radius of 300 m is displayed as an error range.

In addition, when displaying the position of the mobile station 2, the route from the position of the vehicle to the mobile station 2 may be searched to display the searched route.

As described above, according to the present embodiment, the cellular phones 2, 13 and the car navigation apparatus 1 are configured as follows.

The first mobile phone 2

(a) a first judging unit 201 that determines whether or not a transmission instruction of the history information with the location information attached as the history information including the location information is present; And

(b) When the first determination unit 201 determines that there has been a transmission instruction, the second portable telephone 13 has a transmission unit 202 for transmitting history information with position information attached thereto.

The second walkie talkie 13

(a) a second judging unit 131 for judging whether or not history information with position information is received;

(b) a registration unit 132 for registering the history information with the location information attached to the history memory 13b.

(c) a first display unit 133 which displays a list of historical information with position information registered in the history memory 13b on the display unit 13c;

(d) a designation unit 134 which designates the history information with position information as a conversion target to latitude and longitude information from among the history information with position information displayed on the list; And

(e) It has a conversion part 135 which registers in the history memory 13b after converting the location information of the history information with the designated location information into latitude and longitude information through the server 52.

The car navigation device 1 with communication function

(a) a history information request unit 61 for requesting and receiving a predetermined number of history information from the second portable telephone 13;

(b) a third judging unit 62 which determines whether or not there is history information to which position information is attached among predetermined number of history information;

(c) If the positional information of the history information with the positional information determined by the third determination unit 62 is not yet converted into latitude and longitude information, the second portable telephone 13 requests conversion. A conversion request unit 64; And

(d) It has a 2nd display part 65 which displays the position of the 1st portable telephone 2 on the display apparatus 24 based on the latitude-longitude information of the history information with positional information.

With the above configuration, the second portable telephone 13 is registered with history information with the positional information acquired from the first portable telephone 2 as a mobile station.

The vehicle navigation apparatus 1 with a communication function can request and display the history information with the positional information registered in the second portable telephone 13 on the display device 24 when necessary without particularly increasing the configuration.

At the same time, in the case of history information without latitude and longitude information attached, conversion to latitude and longitude information can be requested.

Therefore, the display device 24 of the automobile navigation apparatus 1 with a communication function can easily display the position on the latitude and longitude of the mobile station 2 without increasing the system configuration.

In addition, the second display portion 65 displays the vehicle position together with the position of the first portable telephone 2.

Therefore, the positional relationship between the mobile station and the vehicle can be easily known.

Further, the second display portion 65 enlarges and displays the position of the first portable telephone 2.

Therefore, the position of the mobile station 2 is clearly recognized.

Further, the second display portion 65 displays the error range as well as the position of the first portable telephone 2.

Therefore, the range in which the mobile station 2 exists is visually recognized.

In addition, since the second display portion 65 displays the position from the position of the first portable telephone 2 as well as the route from the position of the vehicle, the mobile station 2 can be easily driven.

Claims (18)

A mobile station position detection system, (a) a communication terminal device; (b) a first portable telephone as a mobile station; (c) a second portable telephone connected to the terminal apparatus; (d) a server connected to the public network; (e) a first base station in communication with the first portable telephone; And (f) a second base station in communication with the second portable telephone, 1) The first portable telephone receives and detects radio waves from the plurality of first base stations, i) a signal (ID) identifying the first base station, and ii) a reception electric field of radio waves from the first base station. Send a strength to the second mobile phone, 2) the second portable telephone obtains information showing the location of the first portable telephone based on i) the ID, ii) the received field strength, and iii) the information received from the server; 3) The mobile station position detection system for receiving information showing the position from the second portable telephone and displaying on the display device. The mobile terminal of claim 1, wherein the second portable telephone transmits the ID and the received electric field strength to the server through the second base station. And a latitude and longitude information in which the first portable telephone obtained at the server based on the ID and the received electric field strength is received from the server. The mobile phone of claim 1, wherein the second mobile phone calculates latitude and longitude information showing the latitude and longitude of the mobile phone by calculating the ID, the received electric field strength, and the data received from the server. Mobile station position detection system The method of claim 1, wherein the first portable telephone I) a first judging unit which determines the presence or absence of a transmission instruction of the history information with the location information attached as the history information including the location information; And Ii) when the determination section determines that the transmission instruction has been made, has a transmission section for transmitting history information with the location information attached to the second portable telephone, The second portable telephone A second judging unit which determines whether or not the history information to which the positional information is attached is received; Ii) a registration unit for registering history information with the location information attached to a history memory; A first display unit which displays a list on the display unit of the history information with the position information registered in the history memory; A designation unit which designates, among the history information to which the position information is attached, the history information to which the position information as a conversion object into latitude and longitude information is attached; And Iii) having a converting unit for converting the position information of the history information with the designated position information into latitude and longitude information and then registering the position information in the history memory; The terminal device A history information requesting unit requesting and receiving a predetermined number of history information from the second portable telephone; Ii) a third judging unit which determines whether there is history information to which position information is attached among the predetermined number of history information; A conversion requesting unit for requesting a conversion to the second portable telephone when the positional information of the history information with the positional information determined by the third determining unit is not converted into latitude and longitude information; And I) a mobile station position detection system having a second display portion for displaying the position of the first portable telephone on the display device based on latitude and longitude information of the history information to which the position information is attached. The mobile station position detection system according to claim 4, wherein the conversion unit of the second portable telephone converts the position information of the history information with the designated position information into latitude and longitude information through the server. The mobile station position detection system according to claim 4, wherein the conversion unit of the second portable telephone calculates and converts the position information of the history information with the designated position information and the data received from the server into latitude and longitude information. 7. A mobile station position detection system according to any one of claims 4, 5 or 6, wherein the second display portion displays the position of the terminal device together with the position of the first portable telephone. 7. A mobile station position detection system according to any one of claims 4, 5 and 6, wherein the second display portion enlarges and displays the position of the first portable telephone. 7. A mobile station position detection system according to any one of claims 4, 5 or 6, wherein the second display portion displays the error range together with the position of the first portable telephone. 7. A mobile station position detection system according to any one of claims 4, 5 or 6, wherein the second display portion displays a route from the position of the terminal apparatus together with the position of the first portable telephone. 7. A mobile station position detection system according to any one of claims 1 to 6, wherein the terminal device is a car navigation device and the second base station is a base station for car navigation. 8. The mobile station position detection system according to claim 7, wherein the terminal device is a car navigation device and the second base station is a base station for car navigation. 10. The system of claim 8, wherein the terminal device is a car navigation device and the second base station is a base station for car navigation. 10. The system of claim 9, wherein the terminal device is a car navigation device, and the second base station is a base station for car navigation. The mobile station position detection system according to claim 10, wherein the terminal device is a car navigation device, and the second base station is a base station for car navigation. In a system comprising a first mobile station, a second mobile station, a first mobile communication network in communication with the first mobile station, a second mobile communication network in communication with the second mobile communication device, and a server in communication with the second mobile communication network A mobile station position detection method for detecting and displaying the position of the first mobile station in a second mobile station, Requesting the first mobile station to transmit the ID of the base station of the first mobile communication network detected by the first mobile station and the received field strength of radio waves from the base station; 에 receiving the ID and the received field strength transmitted from the first mobile station in response to the transmission request in step iv above; Obtaining information showing the location of the first mobile station based on the ID, the received field strength, and the information obtained from the server; And Displaying information indicative of the location of the first mobile station. The method of claim 16, wherein the step ,, Iii) transmitting the ID and the received field strength to the server via the second mobile communication network; And Ii) receiving, from the server, information showing the location of the first mobile station obtained from the ID, the received field strength, and the location of the base station of the mobile communication network corresponding to the ID; Mobile station position detection method comprising. The method of claim 16, wherein the step ,, Iii) obtaining, from said server, information about the location of a base station of said mobile communication network corresponding to said ID; And ii) calculating the location of the first mobile station from the information about the location of the base station, the ID, and the received field strength.