JP2002007440A - Map data update system, map data update method and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a map data update system, a map data updating method and a recording medium capable of promptly updating map data. SOLUTION: The map data update system 1 is provided with a host device 2 and a mobile terminal 5 to be connected with the host device 2 by a communication line network 6. The mobile terminal5 is provided with an input means to input changed map information of a different part when an actual state is different from the existing map information and a first transmission control means to transmit the changed map information inputted by the input means to the host device 2 via the communication line network 6. The host device 2 is provided with a map data base to store the map data and a map data update means to update the map data stored in the map data base based on the changed map information transmitted by the first transmission control means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a map data updating system for updating map data, a map data updating method, and a recording medium.

[0002]

2. Description of the Related Art In recent years, large-scale maps such as house maps have been digitized, and their use as a map database is increasing. In such a map database, not only infrastructure figures such as roads, but also, for example,
The size and shape, the resident name as information for identifying individual buildings, the types of landmarks to be displayed on the map and their attribute information, etc. are recorded, and are constantly updated so that the description contents match the actual situation. ing.

[0003] For example, in a "map database updating apparatus" described in Japanese Patent Application Laid-Open No. 2000-47579, an image of a signboard installed in a building and describing the resident name of the building and the name of the store is described. , Extract and correct from the captured image, recognize the characters in the signboard image,
The signboard position is estimated based on the photographing direction and the photographing distance, the estimated signboard image and position are collated with the data in the map database, and the data is added, updated, or deleted in the map database based on the collation result. As a result, data corresponding to the signboard can be efficiently extracted from the map database, so that the amount of work can be reduced as compared with the conventional map database update work.

[0004]

However, in the above-described map database updating apparatus and the conventional map database updating method, a researcher can use a signboard image or information relating to a new landmark on site (field). After acquiring various data such as landmark change / additional information, the office system performs dozens of processes such as collation work with data in the map database, text data input, drawing of figures, etc. Because the database was updated, it took time to update the map database.

An object of the present invention is to provide a map data updating system, a map data updating method, and a recording medium capable of rapidly updating map data.

[0006]

In order to solve the above-mentioned problems, the invention according to claim 1 is a map data updating system 1 for updating map data as shown in FIGS. And a mobile communication terminal device (mobile terminal 5) connected to the host device 2 by a communication line network 6. The mobile communication terminal device 5 is capable of transmitting actual map information to existing map information. Input means (input device 54) for inputting the changed map information of the different portion when the situation is different, and the changed map information input by the input means 54 is transmitted to the host device 2 via the communication line. A first transmission control unit (transmission control unit 55) for transmitting the data via the network 6, wherein the host device 2 stores the map data in a map database (map drawing database 331, display object). Information database 332) and map data updating means (for example, CPU 31) for updating map data stored in the map databases 331 and 332 based on the changed map information transmitted by the first transmission control means 55. And characterized in that:

According to the first aspect of the present invention, since the mobile communication terminal device 5 has the input means 54 and the first transmission control means 55, the changed map information acquired at the time of the field investigation is The data can be transmitted to the host device 2 in real time. Therefore, the map data can be quickly updated by the map data updating means 31 provided in the host device 2.
In addition, the map databases 331 and 332 can be upgraded in a short period of time.

Conventionally, in updating a map database, an investigator has performed a field survey and then performed an input operation of changed map information in an office system. The investigator
Since the field survey and the input operation of the changed map information can be performed, the input operation in the office system can be omitted. Therefore, the number of personnel involved in updating the map database can be reduced, and the operation and maintenance costs of the system can be reduced.

According to a second aspect of the present invention, in the map data updating system according to the first aspect, the host device 2 is provided with a map server 3 and a maintenance server 4, and the map server 3 is provided with a map database 331. 332 and the map data updating means 31, and the maintenance server 4
A duplicate map database (duplicate map drawing database 431, which is a duplicate of the map databases 331 and 332,
Difference data for creating difference data between the duplicate display object information database 432) and the map data stored in the duplicate map databases 431 and 432 based on the modified map information transmitted by the first transmission control means 55. Creating means (for example, CPU 41); difference data checking means (for example, CPU 41) for checking the difference data created by the difference data creating means 41;
The map data updating means 31 provided in the map server 3 updates the map data stored in the map databases 331 and 332 based on the difference data checked by the difference data checking means 41. It is characterized by updating.

According to the second aspect of the present invention, since the maintenance server 4 includes the difference data creating means 41 and the difference data checking means 41, the difference server creates the difference data before updating the original map data. And the process of checking the difference data can be executed in the maintenance server 4.
Further, since the map server 3 includes the map data updating unit 31, the map server 3 can execute the process of updating the original map data. Therefore, the map server 3
The maintenance server 4 and the maintenance server 4 share the processing relating to the update of the map data, so that the map data can be updated smoothly.

Further, since the maintenance server 4 includes the difference data creating means 41, the map database 331 is used based on the difference data created by the difference data creating means 41.
-The update range of 332 can be clarified. Also,
Updated map data can be easily obtained from the difference data.

The invention described in claim 3 is the first or second invention.
In the described map data updating system, the map database includes a map drawing database 331 for storing map drawing data, and a display object information database 332 for storing display object information data relating to a display object to be displayed at a predetermined position on the map. The host device 2 includes map drawing data acquisition means (for example, CPU 31) for acquiring map drawing data indicating an area including a position where a display object is to be displayed from the map drawing database 331; In the map drawing data obtained by the drawing data obtaining means 31, a display object mark M is provided at a position where the display object is to be displayed.
And a map information creating means (for example, CPU 31) for creating map information displaying the map information. The map information created by the map information creating means 31 is transmitted to the mobile communication terminal device 5 via the communication network 6. 2 transmission control means (transmission control unit 34), and the mobile communication terminal device 5 comprises:
A display screen (display screen of the display device 56) and display control means (for example, CPU 51) for displaying the map information transmitted by the second transmission control means 34 on the display screen.
And characterized in that:

According to the third aspect of the present invention, the host device 2 has the second transmission control means 34 and the mobile communication terminal device 5 has the display control means 51. The latest map information can be displayed on the display screen of the mobile communication terminal device 5 in real time. Therefore, since the field survey can be performed based on the latest map information, the efficiency of the field survey can be improved.

According to a fourth aspect of the present invention, in the map data updating system according to the third aspect, the map drawing data is stored in the map drawing database 331 in association with the latitude and longitude information. Is
The latitude / longitude information is stored in association with the display object information data, and the map information creating unit 31 is configured to output the latitude / longitude associated with the display object information data on the map drawing data acquired by the map drawing data acquisition unit 31. It is characterized in that map information in which a display object mark M is displayed at a position corresponding to the information is created.

According to the fourth aspect of the present invention, since the map information creating means 31 creates the map information in which the display object mark M is displayed at a position corresponding to the latitude and longitude information, the display object mark M is displayed on the map. Can be displayed in pinpoint. Therefore, highly accurate map information can be created.

The invention according to claim 5 is the invention according to claim 3 or 4.
In the described map data updating system, the map drawing database 331 stores at least one map drawing data of a road drawing, a building shape drawing, and a site shape drawing. According to the fifth aspect of the present invention, the map drawing data of the road drawing, the building shape drawing, and the site shape drawing can be updated quickly.

According to a sixth aspect of the present invention, in the map data updating system according to any one of the third to fifth aspects, the display object information database 332 includes an address, a householder's name, a renter's name, and landmark information. Wherein at least one display object information data is stored.

Here, the landmark information is, for example,
This is information corresponding to the facility to be displayed (such as a convenience store, bank, gas station, etc.), and includes, for example, the address of the facility, the series of the facility, a trademark mark, and the like. According to the invention described in claim 6, it is possible to quickly update the display object information data of the address, the name of the householder, the name of the tenant, and the landmark information.

According to a seventh aspect of the present invention, in the map data updating system according to any one of the third to sixth aspects, the mobile communication terminal device 5 includes a current position detecting means for detecting a current position, The first transmission control means 55 provided in the body communication terminal device 5 transmits the current position detected by the current position detection means to the host device 2 as current position data via the communication network 6, Host device 2
The map drawing data acquisition means 31 provided in the
Based on the current position data transmitted by the transmission control means 55, map drawing data indicating the area including the current position is acquired from the map drawing database 331, and the map information creating means 31 provided in the host device 2 Is characterized in that map information in which a current position mark P is displayed at the current position on the map drawing data obtained by the map drawing data obtaining means 31 is created.

According to the seventh aspect of the present invention, the map drawing data obtaining means 31 provided in the host device 2 obtains the map drawing data indicating the area including the current position, thereby indicating the area including the current position. The map information is transmitted to the mobile communication terminal device 5 by the second transmission control means 34 and displayed on the display screen of the mobile communication terminal device 5 by the display control means 51. Therefore, map information indicating an area including the current position can be automatically displayed on the display screen of the mobile communication terminal device 5 without performing a process such as designating a region of a map to be displayed.

Since the map information creating means 31 provided in the host device 2 creates the map information in which the current position mark P is displayed at the current position on the map drawing data, the display screen of the mobile communication terminal device 5 is displayed. Above, you can see the current location on the map.

According to an eighth aspect of the present invention, in the map data updating system according to the seventh aspect, the current position detecting means comprises:
The present invention is characterized in that the current position is detected using a GPS (Global Positioning System).

According to the eighth aspect of the present invention, since the current position is detected using the GPS, the current position can be detected with an error of about 3 to 10 meters when the differential processing is performed. Therefore, the current position mark P can be displayed with high accuracy at the current position on the map.

According to a ninth aspect of the present invention, there is provided a map data updating method for updating map data, wherein the mobile communication terminal device 5 is provided with a method in which an actual situation is different from existing map information. Inputting the changed map information of the different portion, transmitting the input changed map information to the host device 2 via the communication network 6, and transmitting the changed map information on the host device 2 side. Updating the map data stored in the map databases 331 and 332 based on the map information. According to the ninth aspect, the same effect as that of the first aspect can be obtained.

According to a tenth aspect of the present invention, there is provided a recording medium storing a computer-executable program or the like for updating map data.
When the actual situation is different from the existing map information, the computer-executable program code necessary to input the changed map information of the different portion and the input changed map information A computer-executable program code required for transmission to the host device 2 via the communication network 6;
A program including a computer-executable program code required to update map data stored in the map databases 331 and 332 based on the transmitted changed map information is stored. I do. According to the tenth aspect, an effect similar to that of the first aspect is obtained.

[0026]

Embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, a map data updating system 1 according to an embodiment of the present invention includes a host device 2 and a mobile terminal 5 which is a mobile communication terminal device. The host device 2 and the mobile terminal 5 are connected to a communication network 6 such as the Internet, a LAN, a WAN, and a telephone network.
Connected by

As shown in FIG. 2, the host device 2 includes a map server 3 and a maintenance server 4. The map server 3 and the maintenance server 4 use WWW (World Wid
e Web) Has a function as a server. The map server 3 and the maintenance server 4 are connected by a communication line such as a LAN, for example.

The map server 3 and the maintenance server 4 each include a CPU (Central Processing Unit) therein.
31 and 41, RAM (Random Access Memory) 32
42, storage devices 33 and 43, a transmission control unit 34 (second transmission control means) 44, input devices 35 and 45,
And display devices 36 and 46, which are connected via internal buses 37 and 47.

In the map server 3, the storage device 33
It has a recording medium 33a in which programs and data are stored in advance. The recording medium 33a includes, for example, a magnetic recording medium, an optical recording medium, a semiconductor memory, and the like. The recording medium 33a is provided fixedly or detachably with respect to the storage device 33.

The recording medium 33a stores a map drawing database 331 and a display object information database 332 as a map database. Also, the recording medium 33
In a, a program storage unit 333 storing a system program of the map data update system 1, various application programs used in map information providing processing, map data update processing, and the like, and execution results of various application programs are stored. The stored result information database 334 and the like are stored.

The programs and data stored in the recording medium 33a are partially or wholly received by the transmission control unit 34 from another server or terminal device via the communication network 6. It is good also as a structure recorded. In addition, programs and the like are transmitted via the communication network 6.
It may be configured to be transmitted to another host device and installed.

The map drawing database 331 stores map drawing data in a data format for a map display program. As the map drawing data, for example, road drawings, building shape drawings, site shape drawings, and the like are stored as electronic data such as vector (coordinate value) data and raster (image) data. Map drawing data
It is associated with latitude and longitude information described later.

More specifically, the map drawing data is obtained as follows. First, spots are taken with a commercial camera from the sky at an altitude of about 7,000 meters, and the shutters are sequentially released to take aerial photographs. After cutting the distorted part of the lens of the aerial photograph taken, determining the usable range, scan the photograph and read the image. By joining the read information, raster data is obtained. Also, vector data is obtained by raster-to-vector conversion. Further, the shadow portion of a building or the like in the detailed map is corrected by a human to make the building shape more accurate.

The electronic data obtained as described above is
For example, a map drawing database 331 may be used as a 1/1500 house map that divides the whole country into 700 or more, a 1/25000, 1 / 50,000 nationwide road map, and other 1/2500, 1/100000, etc. map drawing data.
Is stored in

The present invention is not limited to the above example. For example, in the case of a new subdivision, the CAD (Co
(mputer Aided Design) The map drawing data such as the building shape drawing and the site shape drawing may be obtained by using a drawing or the like.

Such map drawing data is stored in association with latitude and longitude information with reference to a reference point on the map drawing. The latitude and longitude information can be represented by, for example, six digits after the decimal point. In addition, not limited to this,
As described later, the latitude / longitude information may be represented by six or more digits after the decimal point.

The display object information database 332 stores display object information data related to display objects to be displayed at predetermined positions on a map, such as schools, parks, and buildings. The display object information data includes, for example, the address of the display object,
Information such as types and attributes is included. For example, if the building to be displayed is a detached house, condominium, apartment, etc., the corresponding displayed object information data includes the address of the building, the name of the householder of the building, the name of the renter, and height information. And so on. If the building to be displayed has facilities such as convenience stores, banks, gas stations, etc., the corresponding displayed object information data includes the facility address, the series of facilities, and landmarks such as trademark marks. Information is included.

The display object information data is stored in association with latitude and longitude information. The latitude and longitude information can be represented by, for example, six digits after the decimal point. The latitude and longitude information is not limited to this, and may be represented by six or more digits after the decimal point. More specifically, when the scale of the map drawing data is about 1/1500 to 1/700, if the accuracy of the latitude / longitude information is 6 decimal places in decimal notation, the display object is displayed relatively accurately on the map. it can. Further, when the scale of the map drawing data is smaller, it may be desirable that the accuracy of the latitude and longitude information is 6 digits or more after the decimal point according to the density and the shape of the buildings displayed on the map drawing.

The program storage unit 333 stores programs relating to map data updating and various application programs for editing map data. The program relating to the map data updating includes updating map drawing data stored in the map drawing database 331 or display object information data stored in the display object information database 332 based on difference data described later. Computer program code necessary for the program. Further, as the application program, for example, search for display object information data, landmarks corresponding to the searched display object information data,
Examples of the program include a program for displaying colors on a map by color coding, and a program for displaying aging of landmarks by color coding.

The CPU 31 stores, in the RAM 32, system programs and various application programs stored in the storage device 33, and various data corresponding to various instruction signals transmitted from the mobile terminal 5 and the like. In addition, according to various instruction signals and input data,
Various processes are executed according to the application programs stored in the RAM 32. The processing result is temporarily stored in the RAM 32 and is transmitted to the mobile terminal 5 via the transmission control unit 34. Further, part or all of the processing result information is stored in the result information database 334.

More specifically, the CPU 31 functions as a map drawing data acquiring means, a position corresponding to the latitude and longitude information associated with the display object information data (a position where the display object is to be displayed).
A process of acquiring map drawing data indicating an area including a map from the map drawing database 331,
A display object mark (for example, a display object mark M shown in FIG. 6) is displayed at a position (a position where the display object is to be displayed) corresponding to the latitude and longitude information associated with the display object information data on the map drawing data. A process for creating map information, and as map data updating means, based on difference data to be described later, map drawing data stored in a map drawing database 331 or display object information data stored in a display object information database 332. As an analysis / editing unit, an analysis / editing process by various application programs is executed.

The RAM 32 forms a program storage area for expanding various data when the CPU 31 executes a program stored in the storage device 33. Also, CPU
A storage area for temporarily storing data relating to the processing executed by 31 is formed. In addition, a work area processed by the input instruction and the input data is formed.

The transmission control unit 34 has a modem (MODEM:
MOdulator / DEModulator), terminal adapter (T
A: Terminal Adapter), router, etc. The transmission control unit 34 is connected to the communication network 6 via a communication line such as a telephone line, an ISDN line, and a dedicated line.
The difference data and the map information are transmitted and received between the maintenance server 4 and the mobile terminal 5.

The display device 36 is, for example, a CRT (Cathod).
e Ray Tube), LCD (Liquid Crystal Display) and the like. Map information is displayed on the display screen of the display device 36 according to the display control of the CPU 31. The screen display of the map information is performed by downloading the viewer and operating the viewer based on the URL input by each browser.

The maintenance server 4 stores the recording media 43a and C
Except for the PU 41, the configuration is almost the same as that of the map server 3. The description of the configuration other than the recording medium 43a and the CPU 41 is omitted.

The recording medium 43a stores a duplicate map drawing database 431 and a duplicate display object information database 432 as duplicate map databases. These duplicate map databases are a map drawing database 331 and a display object information database 3 provided in the map server 3.
32 replicas.

The program storage unit 433 of the recording medium 43a stores a program for updating map data. Programs related to updating map data include:
Necessary for creating difference data from map drawing data stored in the duplicate map drawing database 431 or display object information data stored in the duplicate display object information database 432 based on changed map information described later. Program code that can be executed by a simple computer and program code that can be executed by a computer necessary to check difference data.

Further, the CPU 41 specifically serves as difference data creating means, based on the modified map information described later, the map drawing data stored in the duplicate map drawing database 431 or the duplicate display object information database 432. The processing for creating difference data with the display object information data stored in the database, the processing for checking difference data as difference data checking means, and the analysis and editing processing by various application programs as analysis and editing means are executed.

As shown in FIG. 3, the mobile terminal 5 has a CPU 51, a RAM 52, a hard disk device 5
3, an input device 54, a transmission control unit 55 (first transmission control means), a display device 56, and the like, which are connected via an internal bus 57. The mobile terminal 5 is, for example, a notebook computer, a handheld computer, a P
DA (Personal Digital Assistant), mobile phone, P
HS (Personal Handyphone System).

The hard disk device 53 stores control programs such as an OS (operating system),
An application program such as a browser for W is stored.

When the actual situation is different from the existing map information, the hard disk device 53 can execute a computer necessary for inputting the changed map information of the different portion. A program including a program code and a computer-executable program code required for transmitting the input changed map information to the host device via the communication network is stored. This program may be stored in a recording medium that is detachably provided to the mobile terminal 5, for example.

The CPU 51 performs various processes according to a program stored in the hard disk device 53. Specifically, the CPU 51 executes a process of displaying the map information transmitted by the transmission control unit 34 of the map server 3 on a display screen of the display device 56 as a display control unit.

The RAM 52 forms a program storage area for expanding various data when the CPU 51 executes a program stored in the hard disk device 53. Further, it forms a storage area in which data relating to the processing executed by the CPU 51 is temporarily stored. In addition, a work area processed by the input instruction and the input data is formed.

The input device 54 includes, for example, a keyboard,
A pointing device such as a mouse and a touch pen is provided. If the actual situation is different from the existing map information, the input device 54 can input the changed map information of the different part.

The transmission control unit 55 includes a modem, a terminal adapter, a router, and the like. Transmission control unit 5
Reference numeral 5 denotes a communication line such as a telephone line, an ISDN line, or a dedicated line, or a connection to a communication line network 6 via a base station, and exchanges map information and changed map information with the map server 3 and the maintenance server 4. And so on.

The display device 56 is constituted by, for example, an LCD or the like. The display screen of the display device 56 includes CP
According to the display control of U51, the map information is displayed by the operation of the downloaded viewer.

The map information providing process and the map data updating process in the map data updating system 1 configured as described above will be described with reference to the flowcharts shown in FIGS.

In steps S1 to S17 shown in FIG. 4, a map information providing process is performed. First, in step S1,
The browser is started on the mobile terminal 5 side, and the display device 56
According to the instruction displayed on the display screen, the display area information indicating the display area to be displayed on the map is input. Specifically, for example, the name of a prefecture such as "Tokyo" or "Shinjuku-ku"
Enter the city name, postal code, latitude and longitude, etc.

Next, in step S2, the input display area information is transmitted to the map server 3 of the host device 2 by the transmission control unit 55 of the mobile terminal 5, and in step S3,
The transmitted display area information is received by the transmission control unit 34 of the map server 3.

Next, in step S 4, the CPU 31 specifies an address range from the received display area information, and extracts display object information data corresponding to the address range from the display object information database 332.

Next, in step S5, based on the latitude / longitude information associated with the display object information data, the CPU 31 generates map drawing data (for example, 1/1) indicating a region including a position corresponding to the latitude / longitude information. 1500 map drawing data) from the map drawing database 331.

Next, in step S6, the CPU 31 displays on the map based on the acquired map drawing data a display object mark M displayed at a position corresponding to the latitude and longitude information associated with the display object information data. Create Here, the display object mark is, for example, a circular mark M shown in FIG. 6, a map symbol indicating a park or a school, a landmark indicating a trademark mark of a facility, a mark indicating a building shape itself, or the like. In particular, the shape of the mark is not limited.

Next, in step S7, the transmission control unit 34 transmits the created map information to the mobile terminal 5,
In step S8, the map information is received by the transmission control unit 55 on the mobile terminal 5 side.

Next, in step S 9, the received map information is displayed on the display screen of the display device 56 by the CPU 51. Specifically, for example, the map drawing shown in FIG.
On the display screen of.

Next, in step S10, it is determined whether or not a click operation has been performed by the pointing device of the mobile terminal 5 after the cursor C is overlaid on the display object mark M on the display screen. The click operation is performed by, for example, a mouse, a touch pen, an input key, or the like. If the click operation has been performed, step S11
Then, the display object mark information corresponding to the clicked display object mark M is specified.

Next, in step S12, the transmission control unit 55
Thus, the designated display mark information is transmitted to the map server 3 and the transmission control unit 34 of the map server 3 receives the display mark information in step S13.

Next, in step S 14, the CPU 31 acquires display object information (for example, an address, a householder's name, a tenant's name, etc.) corresponding to the received display object mark information from the display object information database 332.

Next, in step S15, the transmission control unit 34
, The acquired display object information is transmitted to the mobile terminal 5, and in step S16, the transmission control unit 5 of the mobile terminal 5
5, the display object information is received. Next, step S17
Then, the received display object information is displayed on the display screen of the display device 56 by the CPU 51 (not shown).

If no click operation is performed in step S10, steps S11 to S1 are performed.
7 is omitted.

Steps S18 to S26 shown in FIG.
In, map data update processing is performed. First, in step S18, it is determined whether to input the changed map information. The changed map information is the map information including the different part when the actual situation is different from the existing map information displayed on the display screen of the display device 56, for example, , Map road drawings, building shape drawings,
Addition / change / new creation / movement including site shape drawing, building address, head of household, name of tenant, landmark information, etc.
Deleted data.

When inputting the changed map information, the process shifts to step S19, and the input device 54 inputs the changed map information.

For example, when a building shape is changed or a road is added, a maintenance layer is displayed on the display screen of the mobile terminal 5 on which map information is displayed, and a conventional map is placed underneath. In this state, the user traces up with a touch pen, a mouse cursor, or the like to input map drawing data such as a building shape drawing or a road drawing as changed map information.

For example, when a new building or a new subdivision is added, a CA for confirmation application is added.
Using the D drawing data, map drawing data such as a newly added building shape drawing and site shape drawing is input. In this case, a correspondence table between the lot number and the written address is held, and the address can be managed in the future.

For example, when the nameplate information, the renter information of the condominium or apartment, the landmark information, and the like are changed, in steps S11 to S17, after confirming the existing display object information, Enter the name of the householder, tenant name, landmark information, etc. When information such as new landmark information, household head name, tenant name, etc. is obtained, a new name is input, a new type is selected, and attribute information is input.

Next, in step S20, the transmission control unit 55
With this, the input changed map information is transmitted to the maintenance server 4, and in step S21, the transmission control unit 44 of the maintenance server 4
To receive the changed map information.

Next, in step S22, the map drawing data stored in the duplicate map drawing database 431 or the display stored in the duplicate display object information database 432 is displayed by the CPU 41 based on the received changed map information. Create difference data with the object information data.

Next, in step S23, the CPU 41 checks the created difference data. Specifically, for example, a check of the consistency between the difference data and the existing map data, a classification of the difference data, and the like are performed.

Next, in step S24, the transmission control unit 44
, The checked difference data is transmitted to the map server 3, and in step S25, the transmission control unit 3 of the map server 3
4 to receive the difference data.

Next, in step S26, the map drawing data stored in the map drawing database 331 or the map drawing data stored in the map drawing database 331 by the CPU 31 based on the received difference data.
The display object information data stored in the display object information database 332 is updated. In this way, the map data is updated based on the changed map information input on the mobile terminal 5 side.

If it is determined in step S18 that the changed map information is not to be input, the process proceeds to step S19.
Steps S26 to S26 are omitted.

As described above, according to the present embodiment,
The mobile terminal 5 can input the changed map information acquired at the time of the field survey and transmit the changed map information to the host device 2 in real time. Accordingly, the map drawing data of the road drawing, the building shape drawing, and the site shape drawing stored in the map drawing database 331, and the address, the householder's name, the tenant's name, and the landmark information displayed in the display object information database 332. Map data such as information data can be updated quickly. In addition, the map drawing database 331 and the display object information database 332 can be upgraded in a short period of time.

In the above-described step S19, when inputting the changed map information relating to the building shape drawing or the road drawing, the maintenance layer is created by tracing the conventional map underneath and tracing upward. The update of the map drawing data based on the maintenance layer is a tentative process until the map drawing data is updated based on the aerial photograph. However, at the time of field survey, the surveyor can create a maintenance layer by line drawing work and update the map drawing data based on this. The map drawing data can be updated more quickly than when the data could not be updated.

In the past, in updating a map database, a researcher had to perform a field survey and then input changed map information in an office system. The staff members can conduct field surveys and input changed map information. Therefore, in the office system, only the work of checking the changed map information needs to be performed, so that the number of personnel involved in updating the map database can be reduced, and the operation and maintenance costs of the system can be reduced.

Further, the CPU 41 of the maintenance server 4
The process of creating the difference data and the process of checking the difference data are executed, and the CPU 31 of the map server 3 executes the process of updating the map databases 331 and 332. Therefore, the map server 3 and the maintenance server 4 share the processing related to the update of the map data, so that the map data can be updated smoothly.

Further, the CPU 41 of the maintenance server 4
The changed map information can be classified into the types of map data (for example, building shape drawings, landmark information, and the like) and difference processing can be performed. Further, since the difference data is created, the update range of the map databases 331 and 332 can be clarified.
Further, information such as rebuilding a building, moving a resident, or changing a generation of a nameplate can be easily acquired from the difference data.

Further, the map information is transmitted to the mobile terminal 5 by the transmission control unit 31 of the map server 3 and displayed on the display screen of the display device 56 of the mobile terminal 5. Thus, the latest map information can be displayed on the display screen of the mobile terminal 5. Therefore, the field survey can be performed based on the latest map information displayed on the display screen, so that the efficiency of the field survey can be improved.

Also, the CPU 31 of the map server 3
Since the map information in which the display object mark M is displayed at the position corresponding to the latitude / longitude information associated with the display object information data is created, the display object mark M can be displayed on the map at a pinpoint. Therefore, highly accurate map information can be created.

The mobile terminal 5 may be provided with a GPS (Global Positioning System) receiver as a current position detecting means. In this case, for example, G
The latitude and longitude information of the current position detected as the current position data by the PS receiver is transmitted to the map server 3 by the transmission control unit 55, and the CPU 31 of the map server 3 includes a location corresponding to the latitude and longitude information of the current position. The map drawing data is acquired from the map drawing database 331. Thereafter, the CPU 31 creates map information in which a current position mark (for example, the current position mark P in FIG. 7) is displayed at a location corresponding to the latitude and longitude information of the current position on the map drawing data.

Thereafter, the map information displaying the current position mark P is transmitted to the mobile terminal 5 by the transmission control section 34 of the map server 3 and displayed on the display screen of the display device 56 of the mobile terminal 5 by the CPU 51.

As described above, when the mobile terminal 5 is provided with the GPS receiver, the current position on the map can be confirmed on the display screen of the mobile terminal 5. Also, GPS
Since the current position is detected using the receiver,
By performing a differential process, it is possible to detect an error of about 3 to 10 meters. Therefore, at the current location on the map,
The current position mark P can be displayed with high accuracy.

Further, map information indicating the area including the current position can be automatically displayed on the display screen of the display device 56 of the mobile terminal 5 without inputting the display area information in step S1 in FIG. . In addition, it is not limited to GPS,
Even when the current position is detected using another current position detecting means such as another satellite positioning system, map information indicating an area including the current position can be automatically displayed.

For example, as shown in FIG. 8, when a mobile terminal (for example, mobile phone 7) provided with a numeric keypad 73 is used, the cursor C can be moved in a two-dimensional direction using the numeric keypad 73. It is good to do.

On the surface of the housing 71 of the mobile phone 7, an input section 72 provided with ten keys 73 and a display section 74 constituted by an LCD or the like are provided. A receiver 75 is provided above the display unit 74, and a microphone 76 is provided below the input unit 72. In addition, C
A PU, a RAM, a transmission control unit, and the like (not shown) are provided.

For example, the button 732 is pressed to move the cursor C upward in the display section 74, the button 738 is moved to move the cursor C downward, and the button 731 is moved to move the cursor C to the upper left. At the time of inputting the movement of the cursor C, for example, the mode button 721 is pressed in advance to switch to the cursor movement mode.

As described above, when the cursor C is moved using the numeric keypad 73, the moving direction of the cursor C can be visually set in an easily understandable manner, so that the operability when moving the cursor C is good.

In the map information providing process, in step S1, display area information to be displayed on a map is input. In step S4, an address range is specified from the display area information, and a display object corresponding to the address range is specified. The information data is extracted. However, the present invention is not limited to this.
In step 1, the name of the householder, the name of the tenant, landmark information, etc. may be directly input, and in step S4, display object information data that matches the input data may be extracted.

More specifically, for example, step S1
Then, information such as “XX store @ branch” and “□□ building” is input, and a matching process is performed in step S4. Thereafter, in step S5, map drawing data is obtained based on the latitude and longitude information associated with the extracted display object information data. Thereby, in step S9,
Map information in which marks such as “XX store @ branch” and “□□ building” are displayed on the map drawing data can be displayed on the display screen of the display device 56 of the mobile terminal 5.

Therefore, at the time of the field survey, when the surveyor calls the map information from the map server 3 using the mobile terminal 5, even if he does not know the address of the present location, the building (the store, Based on the names of schools, buildings, etc., map information including the current location can be called.

The map server 3 acquires map drawing data indicating a region including a position corresponding to the latitude and longitude information associated with the display object information data from the map drawing database 331. However, the present invention is not limited to this. Instead, map drawing data indicating an area including the address of the display object may be obtained based on the address information of the display object.

Further, the transmission control unit 55 of the mobile terminal 5 receives the map information and the display object information transmitted from the host device 2 and downloads them to the mobile terminal 5, but the present invention is not limited to this. Alternatively, the map information and the display object information may be recorded in advance in the hard disk device 53 of the mobile terminal 5 via a communication line such as a LAN. Further, a recording medium storing map information, display object information, and the like is provided in the mobile terminal 5 in a detachable manner,
Calling map information and display object information from the recording medium,
The map information and the display object information may be displayed on the display screen of the display device 56 of the mobile terminal 5.

[0102]

According to the first, ninth, and tenth aspects of the present invention, the changed map information acquired during the field survey can be transmitted to the host device in real time, and the map data provided in the host device can be quickly updated. it can. The map database can be upgraded in a short period of time. In addition, in updating the map database, the number of personnel can be reduced. Also,
System operation and maintenance costs can be kept low.

According to the second aspect of the invention, the same effect as that of the first aspect of the invention can be obtained, and the map data can be updated smoothly. In addition, the update range of the map database can be clarified. Also, updated map data can be easily obtained from the difference data.

According to the third aspect of the invention, the same effect as that of the first or second aspect can be obtained, and the latest map information can be displayed on the display screen of the mobile communication terminal device. , The efficiency of field surveys can be improved.

According to the fourth aspect of the invention, not only the same effects as those of the third aspect of the invention can be obtained, but also display object marks can be displayed in a pinpoint manner, and highly accurate map information can be created. .

According to the fifth aspect of the invention, the same effects as those of the third or fourth aspect can be obtained, and the map drawing data of the road drawing, the building shape drawing, and the site shape drawing can be obtained. Can be updated quickly.

According to the invention set forth in claim 6, claims 3 to
In addition to the effect similar to that of the invention described in any one of (5) and (5), the display object information data of the address, the name of the householder, the name of the renter, and the landmark information can be quickly updated.

According to the invention of claim 7, claims 3 to
As a matter of course, the same effect as that of the invention described in any one of 6) can be obtained, and the map information indicating the area including the current position can be automatically displayed on the display screen of the mobile communication terminal device. You can also check the current location on the map.

According to the eighth aspect of the present invention, the same effect as that of the seventh aspect of the present invention can be obtained, and the current position mark can be displayed at the current position on the map with high accuracy.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a map data updating system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a host device in FIG.

FIG. 3 is a block diagram showing a mobile communication terminal device in FIG. 1;

FIG. 4 is a flowchart for explaining the operation of the map data updating system in FIG. 1;

FIG. 5 is a flowchart for explaining the operation of the map data updating system in FIG. 1;

FIG. 6 is a display example of a display screen provided in the display device in FIG. 3;

FIG. 7 is another display example of a display screen provided in the display device in FIG. 3;

8 is a diagram showing an example in which a mobile phone is used as a mobile communication terminal device in the map data updating system in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Map data update system 2 Host device 3 Map server 4 Maintenance server 5 Mobile terminal (mobile communication terminal device) 6 Communication line network 31 CPU (Map data update means, map drawing data acquisition means, map information creation means) 34 Transmission control Unit (second transmission control unit) 41 CPU (difference data creation unit, difference data check unit) 51 CPU (display control unit) 54 Input device (input unit) 55 Transmission control unit (first transmission control unit) 331 Map Drawing database (map database) 332 Display object information database (map database) 431 Duplicate map drawing database (duplicate map database) 432 Duplicate display object information database (duplicate map database) M Display object mark P Current position mark

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G06T 11/60 300 G06T 11/60 300 G08G 1/137 G08G 1/137 G09B 29/00 G09B 29/00 Z 29/10 29/10 A F-term (reference) 2C032 HA02 HB05 HB22 HB25 HC08 HC11 HC13 HC14 HC21 HD03 HD13 2F029 AA02 AA07 AB05 AB07 AC02 AC09 AC14 AC16 AC20 5B050 AA01 BA10 BA17 CA07 CA08 EA19 FA02 FA08 FA16 FA19 5B075 ND07 5H180 AA01 BB05 CC12 FF05 FF13 FF22 FF32 FF38

Claims (10)

[Claims] 1. A map data updating system for updating map data, comprising: a host device; and a mobile communication terminal device connected to the host device via a communication network, wherein the mobile communication terminal device Input means for inputting the changed map information of the different portion when the actual situation is different from the existing map information; and inputting the changed map information input by the input means to the host device. A first transmission control unit that transmits the data via the communication line network, the host device stores a map database that stores the map data, and a modified map information transmitted by the first transmission control unit. Map data updating means for updating map data stored in the map database based on the map data. . 2. The map data updating system according to claim 1, wherein the host device includes a map server and a maintenance server, wherein the map server includes a map database and map data updating means, The maintenance server calculates difference data between a duplicate map database, which is a duplicate of the map database, and map data stored in the duplicate map database based on the modified map information transmitted by the first transmission control means. And a difference data checker for checking the difference data created by the difference data creator. The map data updater provided in the map server includes: Based on the difference data checked by the means, stored in the map database. Map data updating system and updates the map data are. 3. The map data updating system according to claim 1, wherein the map database includes: a map drawing database for storing map drawing data; and display object information data relating to a display object to be displayed at a predetermined position on the map. And a display object information database storing the display object information. The host device obtains map drawing data indicating an area including a position where the display object is to be displayed from the map drawing database. Map information creating means for creating map information in which a display object mark is displayed at a position where the display object is to be displayed on the map drawing data acquired by the map drawing data acquiring means; and map information created by the map information creating means. Map information,
A second transmission to a mobile communication terminal device via a communication network
The mobile communication terminal device comprises: a display screen; and a display control means for displaying the map information transmitted by the second transmission control means on the display screen. A map data updating system, characterized in that: 4. The map data updating system according to claim 3, wherein the map drawing database stores the map drawing data in association with the latitude and longitude information, and the display object information database stores the latitude and longitude information in the display object database. The map information creating means stores the display object at a position on the map drawing data acquired by the map drawing data acquisition means corresponding to the latitude and longitude information associated with the display object information data. A map data updating system for creating map information displaying a mark. 5. The map data updating system according to claim 3, wherein the map drawing database stores at least one map drawing data of a road drawing, a building shape drawing, and a site shape drawing. A featured map data update system. 6. The map data update system according to claim 3, wherein the display object information database includes at least one of an address, a household head name, a tenant name, and landmark information. A map data updating system characterized by storing data. 7. The map data updating system according to claim 3, wherein the mobile communication terminal device includes a current position detection unit that detects a current position, and is provided in the mobile communication terminal device. The first transmission control means transmits the current position detected by the current position detection means to a host device as current position data via a communication network, and obtains map drawing data acquisition means provided in the host device. Acquiring map drawing data indicating an area including the current position from the map drawing database based on the current position data transmitted by the first transmission control means, and generating map information provided in the host device. Means for generating map information indicating a current position mark at the current position on the map drawing data acquired by the map drawing data acquiring means; Map data update system according to claim. 8. The map data updating system according to claim 7, wherein the current position detecting means is a GPS (Global Positioning S).
ystem) to detect the current position. 9. A map data updating method for updating map data, wherein, when an actual situation is different from existing map information on a mobile communication terminal device side, the difference between the different parts is obtained. Inputting the changed map information, transmitting the input changed map information to a host device via a communication network, and storing the changed map information in a map database on the host device side based on the transmitted changed map information. Updating map data that has been entered. 10. A recording medium for storing a computer-executable program for updating map data, wherein an actual situation is different from existing map information on a mobile communication terminal device side. In this case, a computer-executable program code necessary for inputting the changed map information of the different portion and a program code required for transmitting the input changed map information to the host device via the communication network are provided. Computer-executable program code, On the host device side, based on the transmitted modified map information, computer-executable program code required to update map data stored in the map database, A storage medium storing a program including the following.