JP2006086833A - Address display system of gps positional information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display an address of GPS positional information in real time without requiring a large capacity storage device for a terminal. <P>SOLUTION: A positional information terminal 100 transmits latitude and longitude data to be outputted by a GPS module 105 to a positional information base station 200. The positional information base station 200 extracts map data 202, the latitude and longitude data 203 and address data 204 around received latitude and longitude and transmits them to the positional information terminal 100. The positional information terminal 100 stores each piece of the data in a two-dimensional array of the storage device 108, calculates an index in the two-dimensional array based on the latitude and longitude data to be outputted by the GPS module 105, acquires the current position and address on the map and displays the address on an LCD display panel 104. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an address display system for GPS position information that displays an address of a current position in real time based on position information obtained by GPS in the form of latitude and longitude.

Conventionally, there is one that displays its current position on a map displayed on the screen based on its own position information obtained in the form of latitude and longitude by GPS, but the address display on the map is simplified and the boundary line Is difficult to understand, and the exact address of the current position cannot be grasped. This is inconvenient if you want to tell others where you are. On the other hand, as described in Patent Document 1, an address database that stores latitude and longitude and addresses in association with each other is stored. Based on position information obtained by GPS, the address database is referred to in the form of an address. Devices that display position information are known.
Japanese Patent Publication No.7-49959

According to the prior art described above, an external storage device such as a CD-ROM is used as the address database. A terminal using a large-capacity storage device such as a CD-ROM is difficult to miniaturize and is inconvenient to carry.
The present invention has been made in view of the above circumstances, and its purpose is to provide GPS location information that can display the address of its current location in real time without requiring a mass storage device in the terminal. It is to provide an address display system.

  The present invention has been made to solve the above-described problems. The invention according to claim 1 is a GPS in which a location information terminal including a GPS receiver and a location information base station are connected via a communication network. In the location information address display system, the location information base station is configured to store map data, latitude / longitude data associated with the map data, and address data, and a request from the location information terminal. Extraction means for extracting data of a specified range of the map data and latitude / longitude data and address data of a range associated with the data of the specified range, and the extracted map data, latitude / longitude data and address data Transmitting means for transmitting to the location information terminal, wherein the location information terminal is the GPS receiver. The latitude and longitude of the acquired current position is transmitted to the position information base station, request means for requesting the map data, latitude and longitude data and address data by specifying a range, and map data acquired from the position information base station, Storage means for storing latitude and longitude data and address data in association with each other, and display means for extracting an address corresponding to the latitude and longitude acquired from the GPS receiver from the address data and displaying it together with the map data. This is an address display system for GPS position information.

  According to a second aspect of the present invention, in the GPS position information address display system according to the first aspect, the storage means of the position information terminal includes map data, latitude / longitude data, and address data acquired from the position information base station. Are stored in a two-dimensional array, and the display means calculates a storage address of an address corresponding to a latitude and longitude by calculating an index of the two-dimensional array.

  According to a third aspect of the present invention, in the GPS position information address display system according to the second aspect, the display means includes an index of the two-dimensional array storing the latitude / longitude data and a stored latitude / longitude value. And a storage address of an address corresponding to the latitude and longitude of the current position acquired from the GPS receiver is specified in the two-dimensional array based on the correspondence.

  According to the present invention, data stored in an external storage device such as a conventional CD-ROM is stored in a server connected to a communication network, and a necessary part of data is acquired by the terminal. The address of the current position can be displayed in real time without requiring a mass storage device. By carrying the terminal, it is possible to accurately grasp the address of the current position even in an unfamiliar place such as a business trip destination or a travel destination, and to accurately tell where the person is now.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an address display system for GPS position information according to an embodiment of the present invention.
The location information terminal 100 is a terminal such as a GPS mobile phone. The location information terminal 100 is connected to the communication network 300. The communication network 300 is, for example, a mobile phone network. The location information terminal 100 communicates with the location information base station 200 connected to the communication network 300.
The mobile phone block 101 of the location information terminal 100 includes a mobile phone communication module 102 that transmits and receives data, a keyboard 103 that is used when an operation is required, an LCD display panel 104 that displays a map, a current location, and an address. The
The GPS module 105 is a GPS receiver that receives GPS radio waves and outputs latitude / longitude data of the current position.
The controller 106 controls the mobile phone block 101, the GPS module 105, the storage device 108, and the Row Column address decoder 109 via the data bus 111. A control program is stored in a control program ROM (control program read-only memory) 107, and the controller 106 operates according to the control program.

The storage device 108 stores map screen data 112, latitude / longitude two-dimensional array data 113, and address two-dimensional array data 114, and also includes a row register 115 and a column register 116.
FIG. 2 is an example of the map screen data 112. The map screen data 112 is obtained by dividing map image data into 10 vertical and horizontal directions and storing them in a two-dimensional array. Note that the number of vertical and horizontal divisions is not limited to ten.
The latitude / longitude two-dimensional array data 113 is latitude / longitude data corresponding to each area divided in the map screen data 112, and an example thereof is shown in [Table 1].

アドレス２次元配列データー１１４は、地図画面データー１１２において区分けされた各々の領域に対応する住所を示すアドレスデーターであり、その一例を［表２］に示す。

The address two-dimensional array data 114 is address data indicating an address corresponding to each area divided in the map screen data 112, and an example thereof is shown in [Table 2].

地図画面データー１１２、緯度経度２次元配列データー１１３、アドレス２次元配列データー１１４は、Rowインデックス及びColumnインデックスで特定される２次元配列の領域に格納され、後に説明するようにインデックスに所定の演算を行うことで相互に対応づけされる。
Rowレジスター１１５、Columnレジスター１１６は、Row Columnアドレスデコーダー１０９が出力するRow値及びColumn値を記憶する。この値は２次元配列に格納されたデーターのインデックスを算出するときに使用される。
［表３］は、Row Columnアドレスデコーダー１０９内に記憶されるデーターの例である。

The map screen data 112, the latitude / longitude two-dimensional array data 113, and the address two-dimensional array data 114 are stored in a two-dimensional array area specified by the Row index and the Column index, and a predetermined calculation is performed on the index as will be described later. By doing so, they are associated with each other.
The row register 115 and the column register 116 store the row value and the column value output from the row column address decoder 109. This value is used when calculating the index of data stored in the two-dimensional array.
[Table 3] is an example of data stored in the Row Column address decoder 109.

［表３］は緯度経度２次元配列データー１１３の内容をもとに生成され、緯度経度２次元配列データー１１３のRow値及びColumn値と緯度経度の対応関係を示すものである。Row Columnアドレスデコーダー１０９は、ＧＰＳモジュール１０５によって測定された緯度経度データーを［表３］によってRow値及びColumn値に変換し、データーバス１１１へ出力する。
位置情報基地局２００は通信ネットワーク３００を介して位置情報端末１００に接続されており、そのデーターサーバー２０１は、地図データー２０２、緯度経度データー２０３、アドレスデーター２０４を記憶する。地図データー２０２と、緯度経度データー２０３及びアドレスデーター２０４とは、対応づけて記憶される。対応づけの方法は、位置情報端末１００の記憶装置１０８における地図画面データー１１２、緯度経度２次元配列データー１１３、アドレス２次元配列データー１１４の対応づけと同様である。位置情報基地局２００は、位置情報端末１００から緯度経度データーを受信し、データーサーバー２０１に記憶された地図データー２０２、緯度経度データー２０３、アドレスデーター２０４から抽出したデーターを位置情報端末１００へ送信する。この位置情報基地局２００は、通信制御部２０５を介して位置情報端末１００と通信を行う。

[Table 3] is generated based on the contents of the latitude / longitude two-dimensional array data 113, and shows the correspondence between the Row value and Column value of the latitude / longitude two-dimensional array data 113 and the latitude / longitude. The row column address decoder 109 converts the latitude / longitude data measured by the GPS module 105 into a row value and a column value according to [Table 3], and outputs them to the data bus 111.
The location information base station 200 is connected to the location information terminal 100 via the communication network 300, and the data server 201 stores map data 202, latitude / longitude data 203, and address data 204. Map data 202, latitude / longitude data 203, and address data 204 are stored in association with each other. The association method is the same as the association of the map screen data 112, the latitude / longitude two-dimensional array data 113, and the address two-dimensional array data 114 in the storage device 108 of the position information terminal 100. The location information base station 200 receives latitude / longitude data from the location information terminal 100 and transmits data extracted from the map data 202, latitude / longitude data 203, and address data 204 stored in the data server 201 to the location information terminal 100. . The location information base station 200 communicates with the location information terminal 100 via the communication control unit 205.

Next, the operation of the system described above will be described. First, with reference to FIG. 3, the flow of processing in which the location information terminal 100 acquires data necessary for displaying a map, a current location, and an address from the location information base station 200 will be described.
The controller 106 reads out latitude / longitude data indicating its current position from the GPS module 105 (step S11).
The controller 106 transmits the read latitude / longitude data to the position information base station 200 via the mobile phone communication module 102, and designates the map data 202 of the range as the designated range around the position indicated by the latitude / longitude data. The latitude / longitude data 203 and the address data 204 in the range associated with the map data 202 in the range are requested (step S12).
When the communication control unit 205 of the location information base station 200 receives the latitude / longitude data and the data acquisition request from the location information terminal 100, the data server 201 displays the map data 202 of the designated range and the latitude of the range associated with the range. Longitude data 203 and address data 204 are extracted and transmitted to the location information terminal 100 via the communication control unit 205.

The controller 106 of the location information terminal 100 receives data in the specified range from the map data 202 via the mobile phone communication module 102 (step S13). The controller 106 secures a two-dimensional array area for storing data in the storage device 108, and stores the received map data 202 from the storage addresses (R21, C21) to (R30, C30) as shown in FIG. Then, the map screen data 112 is generated (step S14).
Next, the controller 106 receives the latitude / longitude data 203 in the range associated with the map data 202 in the designated range via the mobile phone communication module 102 (step S15). The controller 106 secures a two-dimensional array area for storing data in the storage device 108, and stores the latitude / longitude data 203 of the received range from the storage address (R11, C11) to (R20, C20) as shown in [Table 1]. ) To generate latitude / longitude two-dimensional array data 113 (step S16). The storage addresses obtained by adding 10 to each index are the storage addresses (R21, C21) to (R30, C30) of the map screen data 112. Therefore, the index of the storage address in the map screen data 112 corresponding to the latitude and longitude can be calculated by adding 10 to the Row value and the Column value indicating the storage address in the latitude / longitude two-dimensional array data 113.

Next, the controller 106 stores the correspondence between the Row and Column of the latitude / longitude two-dimensional array data 113 and the latitude / longitude in the Row Column address decoder 109 (step S17). [Table 3] is an example of the Row value and Column value stored in the Row Column address decoder 109. Stores the Row value for each latitude and stores the Column value for each longitude. Here, values R11 to R20 are stored corresponding to latitudes N18 "to N27", and values C11 to C20 are stored corresponding to longitudes E41 "to E50". When the latitude / longitude data is input, the Row index and the Column index of the storage address of the latitude / longitude data in the latitude / longitude two-dimensional array data 113 are obtained by acquiring the Row value and the Column value based on these values. Can be acquired. The contents stored in the row column address decoder 109 are updated as the latitude / longitude two-dimensional array data 113 stored in the storage device 108 is updated.
Next, the controller 106 receives the address data 204 in the range associated with the map data 202 in the designated range via the mobile phone communication module 102 (step S18). The controller 106 secures a two-dimensional array area for storing data in the storage device 108, and stores the address data 204 in the received range from the storage address (R1, C1) to (R10, C10) as shown in [Table 2]. And the address two-dimensional array data 114 is generated (step S19). The storage addresses obtained by adding 10 to each index are the storage addresses (R11, C11) to (R20, C20) of the latitude / longitude two-dimensional array data 113. Therefore, the index corresponding to the storage address in the latitude / longitude two-dimensional array data 113 can be calculated by subtracting 10 from the Row value and the Column value indicating the storage address in the latitude / longitude two-dimensional array data 113.

FIG. 4 shows the correspondence of the map screen data 112, the latitude / longitude two-dimensional array data 113, and the address two-dimensional array data 114 stored in the processes so far. The three planes in FIG. 4 represent storage areas of the two-dimensional array, and positions corresponding to the upper and lower sides of the three planes, for example, (R1, C1), (R11, C11), (R21, C21) are the same on the map. Map screen data of location, latitude / longitude data, and address data. When 10 is added to each of the Row index and Column index of the storage address in the latitude-longitude two-dimensional array data 113, the storage address of the map screen data at the same position on the map is obtained. Similarly, by subtracting 10 from the row index and column index of the storage address in the latitude / longitude two-dimensional array data 113, the storage address of the address data at the same position on the map is obtained.
With the above processing, data necessary for displaying the map, the current position, and the address is stored in the position information terminal 100 on the LCD display panel 104 of the position information terminal 100.

Next, with reference to FIG. 5, the flow of processing in which the location information terminal 100 displays the current location and address on the map displayed on the LCD display panel 104 will be described.
The controller 106 reads latitude / longitude data indicating its current position from the GPS module 105 (step S21), and inputs the read latitude / longitude data to the row column address decoder 109. The row column address decoder 109 outputs a row value and a column value corresponding to the input latitude / longitude data. The output row value and column value are stored in the row register 115 and column register 116 of the storage device 108 (step S22).
Next, the controller 106 calculates the storage address in the map screen data 112 based on the values of the Row register 115 and the Column register 116 (step S23). Since the values of the row register 115 and the column register 116 are values obtained by inputting latitude / longitude data to the row column address decoder 109, the values are stored in the latitude / longitude two-dimensional array data 113 as described above. Represents an address. When 10 is added to each index of the storage address, the storage address in the map screen data 112 can be calculated.
The controller 106 displays the contents of the map screen data 112 on the LCD display panel 104, and on the LCD display panel 104 at a position corresponding to the storage address in the map screen data 112 calculated as shown in FIG. The self-current position mark 121 is displayed on (Step S24).

  Next, the controller 106 calculates the storage address in the address two-dimensional array data 114 based on the values of the Row register 115 and the Column register 116 (step S25). Similarly to the above, since the values of the Row register 115 and the Column register 116 represent the storage addresses in the latitude / longitude two-dimensional array data 113, the storage addresses in the address two-dimensional array data 114 are the storage addresses in the latitude / longitude two-dimensional array data 113. It can be calculated by subtracting 10 from each index. Data of the calculated storage address is acquired from the address two-dimensional array data 114, and a current position address display 122 is displayed on the LCD display panel 104 as shown in FIG. 6 (step S26).

  In the above embodiment, a two-dimensional array area is secured in the storage device 108, the map screen data 112 is changed from (R21, C21) to (R30, C30), and the latitude / longitude two-dimensional array data 113 is (R11, The address two-dimensional array data 114 is stored from (R1, C1) to (R10, C10) from (C11) to (R20, C20), but the method of taking the index of the two-dimensional array is not limited to the above. Based on the index of the storage address of the latitude and longitude two-dimensional array data 113, the index of the storage address of the map screen data 112 and the address two-dimensional array data 114 can be calculated, and it is sufficient to ensure that the storage addresses do not overlap.

  The present invention is used in a mobile phone, a PDA, or the like that displays an address of the current position in real time based on GPS position information.

It is a block diagram which shows the structure of the address display system of GPS position information by embodiment of this invention. It is an example of the map screen data 112. 5 is a flowchart showing a flow of processing in which the location information terminal 100 acquires data from the location information base station 200. It is a figure which shows the relationship of the storage address of the data stored in the two-dimensional array ensured in the memory | storage device 108. FIG. It is a flowchart which shows the flow of the process in which the position information terminal 100 displays a present position and an address. This is an example of a map 120, a self-current position mark 121, and a current position address display 122 displayed on the LCD display panel 104.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Location information terminal, 101 ... Mobile phone block, 102 ... Mobile phone communication module, 103 ... Keyboard, 104 ... LCD display panel, 105 ... GPS module, 106 ... Controller, 107 ... Control program ROM, 108 ... Storage device, 109 ... Row Column address decoder, 111 ... Data bus, 112 ... Map screen data, 113 ... Latitude / longitude two-dimensional array data, 114 ... Address two-dimensional array data, 115 ... Row register, 116 ... Column register, 120 ... Map, 121 ... Self current position mark, 122 ... Current position address display, 200 ... Location information base station, 201 ... Data server, 202 ... Map data, 203 ... Latitude / longitude data, 204 ... Address data, 205 ... Communication control unit, 300 ... Communication network

Claims (3)

In an address display system for GPS location information in which a location information terminal including a GPS receiver and a location information base station are connected via a communication network,
The location information base station is
Storage means for storing map data, latitude / longitude data and address data associated with the map data;
In response to the request from the location information terminal, extraction means for extracting data in a specified range of the map data, and latitude / longitude data and address data in a range associated with the data in the specified range;
Transmitting means for transmitting the extracted map data, latitude / longitude data and address data to the location information terminal;
The location information terminal
Request means for transmitting the latitude and longitude of the current position acquired from the GPS receiver to the position information base station, and requesting the map data, latitude / longitude data and address data by designating a range;
Storage means for storing map data, latitude / longitude data and address data acquired from the location information base station in association with each other;
An address display system for GPS position information, comprising: display means for extracting an address corresponding to the latitude and longitude acquired from the GPS receiver from the address data and displaying it together with the map data.   The storage means of the location information terminal stores map data, latitude / longitude data and address data acquired from the location information base station in a two-dimensional array, respectively, and the display means calculates the index of the two-dimensional array. 2. The address display system for GPS position information according to claim 1, wherein a storage address of an address corresponding to the latitude and longitude is calculated. The display means stores a correspondence relationship between the index of the two-dimensional array storing the latitude / longitude data and the stored latitude / longitude value, and the GPS reception is performed in the two-dimensional array based on the correspondence relationship. The address display system for GPS position information according to claim 2, wherein a storage address of an address corresponding to the latitude and longitude of the current position acquired from the machine is specified.

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