JP7026919B2 - Map data update system, map data update method and program - Google Patents

Description

The present invention relates to a map data update system, a map data update method and a program.

Patent Document 1 describes a real estate information display system that displays a map on a screen in a display range determined by an operation of a user.

Japanese Unexamined Patent Publication No. 2015-138412

For example, the shape and size of real estate may change due to registration such as division. When managing map data showing multiple real estates, it is desirable to maintain the map data by reflecting the changes in the map data to be managed when such changes occur.

However, since the technology described in Patent Document 1 cannot capture changes in real estate, it takes time and effort to maintain map data.

The present invention has been made in view of the above circumstances, and one of its objects is to provide a map data update system, a map data update method, and a program that can reduce the trouble of maintaining map data.

In order to solve the above problems, the map data update system according to the present invention includes a map data storage means for storing map data showing a plurality of real estates, a registration information acquisition means for acquiring real estate registration information, and a registration information acquisition means. The map is based on the created map data acquisition means for acquiring the created map data indicating the map or drawing created for the real estate indicated by the registered information at the time of registration shown in the registered information, and the created map data. A map data updating means for updating the map data stored in the data storage means is included.

In one aspect of the present invention, the created map data acquisition means acquires created map data indicating a map or drawing created for the real estate indicated by the registration information at the time of the latest registration shown in the registration information. ..

Alternatively, the created map data acquisition means acquires the created map data when the purpose of registration shown in the registration information satisfies a predetermined condition.

Alternatively, the created map data acquisition means creates the real estate indicated by the registration information at the time of the latest registration when the purpose of the registration in the latest registration shown in the registration information satisfies a predetermined condition. Acquire the created map data showing the created map or drawing.

Even if the created map data acquisition means acquires the created map data showing the geological survey map created for the real estate indicated by the registration information at the time of registration of the division when the purpose of the registration is the division. good.

Further, when the purpose of the registration is an error in the land area without the result of the national land survey, the created map data acquisition means is a land area survey map created for the real estate indicated by the registration information at the time of registration of the error. The created map data indicating the above may be acquired.

Even if the created map data acquisition means acquires the created map data indicating the latest map or drawing created for the real estate indicated by the registration information when the created map data indicating the geological survey map does not exist. good.

Further, in one aspect of the present invention, the map data updating means obtains the map data of the real estate indicated by the registration information when the purpose of the registration shown in the registration information is a combination or a change of ground. Update.

Further, in the map data updating method according to the present invention, the registration information acquisition means acquires the registration information of the real estate, and the created map data acquisition means performs the registration information at the time of registration shown in the registration information. A step of acquiring the created map data indicating the created map or drawing for the real estate indicated by the above, and a plurality of real estates stored in the map data storage means based on the created map data are shown. Includes steps to update the map data you are using.

In addition, the program according to the present invention acquires the procedure for acquiring the registration information of the real estate, and the created map data showing the map or drawing created for the real estate indicated by the registration information at the time of registration shown in the registration information. A procedure for updating map data indicating a plurality of real estate stored in the map data storage means based on the created map data.

It is a figure which shows an example of the whole structure of the computer network which concerns on one Embodiment of this invention. It is a figure which shows an example of registration information data. It is a figure which shows an example of the lot number map image. It is a figure which shows an example of the lot number map image. It is a functional block diagram which shows an example of the function implemented in the server which concerns on one Embodiment of this invention. It is a figure which shows an example of the boundary point setting data. It is a figure which shows an example of the map type strength correspondence data. It is a figure which shows an example of polygon data. It is a figure which shows an example of the boundary point setting data. It is a figure which shows an example of polygon data. It is a figure which shows an example of polygon data. It is a figure which shows an example of polygon data. It is a flow diagram which shows an example of the flow of the process performed in the server which concerns on one Embodiment of this invention. It is a figure which shows an example of registration information data. It is a figure which shows an example of registration information data. It is a figure which shows an example of registration information data. It is a figure which shows an example of registration information data. It is a figure which shows an example of registration information data. It is a figure which shows an example of registration information data.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing an example of the overall configuration of the computer network 16 according to the embodiment of the present invention. As shown in FIG. 1, a server 10, a terminal 12, and a registration information providing service 14 configured around a computer are connected to a computer network 16 such as the Internet.

As shown in FIG. 1, the server 10 includes a processor 10a, a storage unit 10b, a communication unit 10c, an output unit 10d, and an input unit 10e.

The processor 10a is a program control device such as a CPU, and executes various information processing according to a program stored in the storage unit 10b.

The storage unit 10b is, for example, a storage element such as a ROM or RAM, a hard disk drive, or the like. The storage unit 10b stores a program or the like executed by the processor 10a.

The communication unit 10c is a communication interface for exchanging data with the terminal 12 and the registration information providing service 14 via, for example, the computer network 16. The server 10 transmits / receives information to / from the terminal 12 and the registration information providing service 14 via the communication unit 10c.

The output unit 10d is, for example, a display unit such as a display that displays and outputs information according to an instruction input from the processor 10a, an audio output unit such as a speaker that outputs audio, a print output unit such as a printer, and the like.

The input unit 10e is, for example, a game controller, a touch pad, a mouse, a keyboard, a microphone, or the like that outputs the contents of an operation performed by the user to the processor 10a.

As shown in FIG. 1, the terminal 12 includes a processor 12a, a storage unit 12b, a communication unit 12c, an output unit 12d, and an input unit 12e.

The processor 12a is a program control device such as a CPU, and executes various information processing according to a program stored in the storage unit 12b.

The storage unit 12b is, for example, a storage element such as a ROM or RAM, a hard disk drive, or the like. The storage unit 12b stores a program or the like executed by the processor 12a.

The communication unit 12c is a communication interface for exchanging data with the server 10 and the registration information providing service 14 via, for example, the computer network 16. The terminal 12 transmits / receives information to / from the server 10 and the registration information providing service 14 via the communication unit 12c.

The output unit 12d is, for example, a display unit such as a display that displays and outputs information according to an instruction input from the processor 12a, an audio output unit such as a speaker that outputs audio, a print output unit such as a printer, and the like.

The input unit 12e is, for example, a game controller, a touch pad, a mouse, a keyboard, a microphone, or the like that outputs the contents of an operation performed by the user to the processor 12a.

The registration information providing service 14 is a computer system that provides a registration information providing service by, for example, the General Foundation Law, People's Affairs and Legal Association. The registration information providing service 14 provides registration information such as all requested real estate registration matters to the computer system in response to a request from a computer system such as a server 10.

The registration information providing service 14 according to the present embodiment provides information on all real estate registration matters to the server 10 in a PDF format file, for example. Then, in the present embodiment, the server 10 executes the text conversion process on the file. Then, in the present embodiment, the registration information data corresponding to the content of the text generated by the text conversion process is registered in the server 10.

FIG. 2 is a diagram showing an example of registration information data (hereinafter referred to as registration information data) registered in the server 10.

One registration information data according to the present embodiment is associated with information on all real estate registration matters for one real estate provided by the registration information providing service 14. Note that FIG. 2 shows the title section data which is a part of the registration information data. The title section data corresponds to the description content of the title section of all real estate registration items corresponding to the registration information data. In the registration information data, the deleted values are underlined.

The title section data includes display type data, preparation date data, real estate number data, map number data, brush boundary identification data, and location data.

The display type data is data indicating the type of real estate, which is written in parentheses on the right side of the description with the title part of all real estate registration items. Preparation date data, real estate number data, map number data, brush boundary identification data, location data are the preparation of the title part of all real estate registration items, real estate number, map number, brush boundary identification, location description contents, respectively. It is the data to show.

Further, the title section data includes one or more combinations of lot number data, lot number data, lot area data, cause and date [registration date] data. The lot number data, lot number data, land area data, cause and its date [registration date] data are the contents of the lot number, lot number, land area, cause and its date [registration date] in the title section of all real estate registration items, respectively. It is the data shown. In the example of FIG. 2, the value of the lot number data is arranged below the cell described as (circled number 1) lot number. Further, the value of the ground data is arranged below the cell described as (circled number 2) ground. Further, the value of the land area data is arranged below the cell described as (circled number 3) land area. Further, the value of the cause and its date [registration date] data is arranged below the cell described as the cause and its date [registration date].

The registration information data shown in FIG. 2 shows information on all real estate registration matters for the land at 123-4, B-cho, A-city, X prefecture. And, in the registration information data shown in FIG. 2, the land whose lot number is 123-4, B-cho, A city, X prefecture, 123-4 land and 123-11, according to the separate registration dated February 3, 2018. It is shown that it was divided into the land of.

In the registration information data, in addition to the title section data, the description content of the rights section (Kou-ku), the description content of the rights section (Otsu-ku), and the joint collateral list of all real estate registration items corresponding to the registration information data. Data corresponding to the content may be included, but it is omitted in FIG.

Further, the registration information providing service 14 according to the present embodiment provides created map data showing a map or drawing of real estate in response to a request from the server 10. The registration information providing service 14 provides, for example, created map data representing a land survey map, a land readjustment drawing, a cadastral map, a map of Article 14 of the Real Estate Registration Law, a rough map, a quasi-map (public map), and the like. The created map data according to the present embodiment includes map type data indicating the type of map or drawing represented by the created map data, and creation date data indicating the creation date of the created map data. There is.

The created map data according to this embodiment is digitized. Therefore, based on the created map data, the position of the polygon associated with the land section shown in the created map data and the position of the apex included in the polygon (for example, latitude and longitude) can be specified. It has become.

The server 10 according to the present embodiment manages map data indicating a plurality of real estate (for example, a plurality of lands and buildings) generated based on the created map data provided by the registration information providing service 14. Then, in response to a request from the user of the terminal 12, a map image (hereinafter referred to as a lot number map image) generated based on the map data managed by the server 10 is transmitted from the server 10 to the terminal 12. ..

For example, the server 10 generates and generates a lot number map image for a designated place in response to the reception of the place designation (for example, the designation of latitude and longitude, address, lot number, etc.) by the user of the terminal 12. The lot number map image is transmitted to the terminal 12. Then, the terminal 12 displays the lot number map image received from the server 10 on the display.

3 and 4 are examples of lot number map images showing a plurality of lands including a land whose lot number is 123-4, B town, A city, X prefecture, corresponding to the registration information data shown in FIG. 2, respectively. It is a figure which shows. The lot number map image shown in FIG. 3 shows the situation before the division registration dated February 3, 2018 shown in FIG. 2, and the lot number map image shown in FIG. 4 is shown in FIG. It shows the situation after the registration of the separate writing dated February 3, 2018.

For example, the registration of the real estate shown in the map data managed by the server 10 may be performed, and the attributes such as the shape and size of the real estate may change. For example, as described above, one stroke of land may be divided into several strokes of land by registering a division of real estate shown in the map data managed by the server 10.

When managing map data showing multiple real estates on the server 10, when the shape or size of the real estate changes in this way, the changes in the real estate are reflected in the map data to be managed without any hassle. It is desirable to be able to maintain map data.

For example, in the above example, when the registration of the division is performed on February 3, 2018, the lot number map image displayed is from the one shown in FIG. 3, and the registration of the division is reflected. It is desirable that the map data is updated without any trouble so as to be as shown in 4.

Therefore, in the present embodiment, the time and effort for maintenance of the map data can be reduced as follows.

FIG. 5 is a functional block diagram showing an example of the functions implemented in the server 10 according to the present embodiment. It should be noted that it is not necessary for the server 10 according to the present embodiment to implement all of the functions shown in FIG. 5, and functions other than the functions shown in FIG. 5 may be implemented.

As shown in FIG. 5, functionally, the server 10 according to the present embodiment has, for example, a registration information storage unit 20, a map data storage unit 22, a registration information acquisition unit 24, a registration information update unit 26, and a determination unit 28. , The created map data acquisition unit 30, the map data management unit 32, the land number map image generation unit 34, the request reception unit 36, and the data transmission unit 38. Further, the map data storage unit 22 includes a boundary point setting data storage unit 22a, a map type intensity corresponding data storage unit 22b, and a polygon data storage unit 22c.

The registration information storage unit 20 and the map data storage unit 22 are mainly mounted with the storage unit 10b. The registration information acquisition unit 24, the created map data acquisition unit 30, the request reception unit 36, and the data transmission unit 38 are mainly implemented with the communication unit 10c. The registration information update unit 26, the determination unit 28, the map data management unit 32, and the lot number map image generation unit 34 are mainly mounted with the processor 10a.

The above functions may be implemented by executing a program installed on the server 10 which is a computer and including a command corresponding to the above functions on the processor 10a. This program may be supplied to the server 10 via a computer-readable information storage medium such as an optical disk, a magnetic disk, a magnetic tape, a magneto-optical disk, or a flash memory, or via the Internet or the like.

In the present embodiment, the registration information storage unit 20 stores real estate registration information such as the registration information data shown in FIG. 2.

In the present embodiment, the map data storage unit 22 stores, for example, map data showing a plurality of real estates. As described above, the map data storage unit 22 includes a boundary point setting data storage unit 22a, a map type intensity corresponding data storage unit 22b, and a polygon data storage unit 22c.

In the present embodiment, the boundary point setting data storage unit 22a is associated with, for example, the position data indicating the position of the boundary point of the land and the type of the map or drawing in which the boundary point is indicated, and the credibility of the position. The intensity data indicating the height of the boundary point setting data including the intensity data and the boundary point setting data including the data are stored. The position of the boundary point indicated by the boundary point setting data may indicate the position of the installed boundary marker, or may indicate the position of the boundary point where the boundary marker is not installed. Further, in the present embodiment, the boundary point setting data storage unit 22a stores boundary point setting data for a plurality of different boundary points.

FIG. 6 is a diagram showing an example of boundary point setting data. As shown in FIG. 6, the boundary point setting data includes, for example, a boundary point ID, a setting sequence number, position data, setting timing data, corresponding map type data, and intensity data.

A boundary point may appear on multiple maps or drawings. Then, the position of the boundary point shown in each map or drawing may be different. For example, for a boundary point displayed on a quasi-map (public map), when a geological survey map is created with the installation of a boundary marker, the position of the boundary point is on the quasi-map on the created geological survey map. It will be represented more accurately than (public map). In the present embodiment, the history of the positions of the boundary points appearing on various maps or drawings can be managed by the boundary point setting data by performing the setting a plurality of times in this way.

The boundary point ID included in the boundary point setting data is, for example, identification information of the boundary point associated with the boundary point setting data. In the present embodiment, for one boundary point, the boundary point setting data in which the common boundary point ID corresponding to the boundary point is set in the number corresponding to the number of times the boundary point is set is set as the boundary point. It is stored in the data storage unit 22a.

The setting sequence number included in the boundary point setting data is, for example, a number indicating the order in which the boundary points associated with the boundary point setting data are set. For example, for the boundary point corresponding to a certain boundary point ID, the setting sequence number of the boundary point setting data including the boundary point ID is set in order from the oldest creation date of the map showing the boundary point. ..

In the present embodiment, the position data included in the boundary point setting data associated with the boundary point is, for example, data indicating the position of the boundary point shown in the map or drawing associated with the boundary point setting data. .. In the example of FIG. 6, the position is represented by latitude and longitude, but the position of the boundary point may be represented by other than latitude and longitude.

In the present embodiment, the setting timing data included in the boundary point setting data is, for example, data indicating the setting timing of the boundary point associated with the boundary point setting data. The setting timing data may indicate, for example, the creation date of the map or drawing showing the boundary point. Further, when the map or drawing is created in connection with the real estate registration, the setting timing data may indicate the registration date for the real estate registration. In the example of FIG. 6, the registration date is shown in the setting timing data.

In the present embodiment, the corresponding map type data included in the boundary point setting data is, for example, data indicating the type of the map or drawing associated with the boundary point setting data.

In the present embodiment, the intensity data included in the boundary point setting data is, for example, data indicating the high credibility of the position of the boundary point indicated by the position data included in the boundary point setting data. In the present embodiment, for example, in the map type intensity correspondence data shown in FIG. 7, the type of the map or drawing is associated with the high credibility of the position of the boundary point. Then, in the present embodiment, the value of the intensity data is determined based on the map type intensity corresponding data. In the present embodiment, for example, the value of the intensity data associated with the map or the drawing is set to a larger value as the credibility of the position of the boundary point shown in the map or the drawing is higher.

In the present embodiment, the map type intensity corresponding data storage unit 22b stores, for example, the map type intensity corresponding data illustrated in FIG. 7.

As shown in FIG. 7, the map type intensity corresponding data includes map type data indicating the type of map and intensity data associated with the map of the type. In the boundary point setting data shown in FIG. 6, in the map type intensity corresponding data shown in FIG. 7, “3.0” associated with the value “geographical survey map” of the corresponding map type data included in the boundary point setting data. Is set as the value of the intensity data.

It is desirable that the administrator of the server 10 sets in advance that the value of the intensity data becomes larger as the map or drawing has higher credibility in the map type intensity corresponding data. By doing so, the user can easily compare the credibility of each of the positions of the boundary points set a plurality of times by referring to the value of the intensity data.

In the example of the map type strength corresponding data shown in FIG. 7, since the writing boundary that the land owner has a strong feeling for is confirmed when creating the geological survey map, the value of the intensity data associated with the geological survey map is used. It is the largest "3.0".

In addition, in the creation of the land readjustment drawing, the value of the strength data associated with the land readjustment drawing is next to the geological survey map because the writing boundary is created to match the local survey results with the land drawn on the desk. It is a large "2.5".

In addition, since the landowner is present in the creation of the cadastral map, the value of the strength data associated with the cadastral map is "2.0", which is the second largest after the land readjustment drawing.

In addition, since the Article 14 map has on-site stability, the value of the intensity data associated with the Article 14 map is "2.0", which is the same as the cadastral map.

In addition, the sketch is created by an expert on the premise of the presence of the landowner based on some grounds, and although it can be viewed, the grounds of the writing world are insufficient. From this, the value of the intensity data associated with the raw map is "1.0", which is the second largest after the cadastral map and the Article 14 map.

Since the accuracy of the quasi-map (public map) and lot number map varies, the value of the intensity data associated with the quasi-map (public map) and lot number map is the smallest "0.0".

The value of the intensity data shown in FIG. 7 is only an example, and a value different from the value shown in FIG. 7 may be set as the value of the intensity data.

In the present embodiment, the polygon data storage unit 22c stores, for example, the polygon data illustrated in FIG.

The polygon data according to the present embodiment is data representing a polygon including a plurality of boundary points whose positions are indicated by the plurality of boundary point setting data as vertices. The polygon data is associated with the polygon of the land section. As shown in FIG. 8, the polygon data according to the present embodiment includes, for example, polygon ID, property identification data, boundary point ID group data, ground data, generation time data, and disappearance time data.

The polygon ID included in the polygon data is, for example, identification information of a polygon associated with the polygon data.

The property identification data included in the polygon data is, for example, data for specifying real estate such as land represented by a polygon associated with the polygon data. The property identification data of the polygon data includes prefecture name data, city / ward / town / village name data, large character name town name data, character name chome data, and lot number house number data.

The prefecture name data is data indicating the prefecture name of the real estate represented by the polygon associated with the polygon data. The city / ward / town / village name data is data indicating the city / ward / town / village name of the real estate represented by the polygon associated with the polygon data. The large character name town name data is data indicating the large character name or town name of the real estate represented by the polygon associated with the polygon data. The character name chome data is data indicating the character name or chome of the real estate represented by the polygon associated with the polygon data. The lot number house number data is data indicating the lot number or house number of the real estate represented by the polygon associated with the polygon data. The hyphen shown in the lot number house number data included in the polygon data corresponds to the character "number" shown in the lot number data included in the registration information data.

The boundary point ID group data included in the polygon data is, for example, data showing an ordered arrangement of the above-mentioned boundary point IDs. The polygon data according to the present embodiment is associated with a polygon whose apex is a point associated with each of a plurality of boundary point IDs included in the boundary point ID group data.

In the present embodiment, a plurality of boundary point setting data including a common boundary point ID may be stored in the boundary point setting data storage unit 22a. In order to identify a plurality of boundary point setting data indicating the positions of the vertices of the polygon, the boundary point ID group data shown in FIG. 8 shows the setting sequence number in parentheses following the boundary point ID. Has been done.

For example, the position of the first vertex included in the polygon associated with the polygon data shown in FIG. 8 is the boundary point setting data having a boundary point ID of 111 and a setting sequence number of 3 (that is, shown in FIG. 6). It is the position indicated by the position data included in the boundary point setting data). Further, the position of the second vertex is the position indicated by the position data included in the boundary point setting data in which the boundary point ID is 112 and the setting sequence number is 3. Further, the position of the third vertex is the position indicated by the position data included in the boundary point setting data in which the boundary point ID is 113 and the setting sequence number is 3. The position of the fourth vertex is the position indicated by the position data included in the boundary point setting data in which the boundary point ID is 114 and the setting sequence number is 5.

The texture data included in the polygon data is data indicating the texture of the land associated with the polygon data.

The generation time data included in the polygon data is data indicating the generation time of the polygon indicated by the polygon data.

The disappearance time point data included in the polygon data is data indicating the disappearance time point of the polygon indicated by the polygon data. In the present embodiment, for example, for a polygon representing the current state, the value of the polygon data corresponding to the polygon at the time of disappearance is set to Null (represented by a hyphen in FIG. 8).

In the present embodiment, the registration information acquisition unit 24 acquires, for example, real estate registration information. The registration information acquisition unit 24 transmits, for example, a request for transmission of registration information associated with a lot number including a prefecture name to the registration information providing service 14. Then, the registration information providing service 14 transmits the file of the information of all the real estate registration matters of the lot number associated with the transmission request to the server 10 in response to the reception of the transmission request.

Here, for example, using the technique described in JP-A-2017-228123, the server 10 acquires registration application information data from a registration application information data providing system connected via a computer network 16. May be good. Here, the registration application information data registered in the registration application information data providing system is data corresponding to the contents of the real estate registration reception book managed by the Legal Affairs Bureau. Then, the server 10 may specify the lot number including the prefecture name of the real estate for which all the real estate registration items have been updated based on the acquired registration application information data. Then, the registration information acquisition unit 24 may acquire a file of information on all the real estate registration matters for the real estate for which it is specified that all the real estate registration matters have been updated from the registration information providing service 14. As described in Japanese Patent Application Laid-Open No. 2017-228123, the lot number shown in the lot number or house number in the registration application information data is the lot number data included in the registration information data as in the above-mentioned polygon data. Corresponds to the character "number" shown in.

In the present embodiment, the registration information updating unit 26 updates the registration information stored in the registration information storage unit 20 based on the registration information acquired by the registration information acquisition unit 24, for example. For example, the registration information update unit 26 executes text conversion processing on a file of information on all real estate registration items received by the registration information acquisition unit 24. Then, the registration information update unit 26 updates the registration information data by, for example, reflecting the content of the text generated by the text conversion process in the value of the registration information data.

In the present embodiment, the determination unit 28 determines, for example, whether or not the purpose of registration shown in the registration information acquired by the registration information acquisition unit 24 satisfies a predetermined condition for acquiring the created map data. do. Hereinafter, the predetermined conditions for acquiring the created map data will be referred to as acquisition conditions. Here, the determination unit 28 may determine whether or not the purpose of registration in the latest registration shown in the registration information satisfies the acquisition condition.

The acquisition condition includes, for example, that the purpose of registration (for example, the purpose of registration in the latest registration) shown in the registration information acquired by the registration information acquisition unit 24 is a separate writing. For example, in the registration information data shown in FIG. 2, the cause and the character string indicated by the date [registration date] data indicating the latest registration (registration dated February 3, 2018) include "division". It has been. In this case, it may be determined that the purpose of the registration is division (that is, the acquisition condition is satisfied). Other examples of acquisition conditions will be described later.

In the present embodiment, the created map data acquisition unit 30 is, for example, a created map showing a map or a drawing created for the real estate indicated by the registration information at the time of registration shown in the registration information acquired by the registration information acquisition unit 24. Get the data. In the present embodiment, the created map data acquisition unit 30 acquires the created map data from, for example, the registration information providing service 14. Here, the created map data indicating the map or drawing created for the real estate indicated by the registration information may be acquired at the time of the latest registration shown in the registration information.

In addition, if the purpose of registration shown in the registration information (for example, the purpose of registration in the latest registration) satisfies the acquisition conditions, a map or drawing created for the real estate indicated by the registration information at the time of the registration. The created map data indicating the above may be acquired.

In addition, when the purpose of registration shown in the registration information (for example, the purpose of registration in the latest registration) is a division, a land area survey map created for the real estate indicated by the registration information at the time of registration of the division. The created map data indicating the above may be acquired.

In the present embodiment, the map data management unit 32 updates the map data stored in the map data storage unit 22 based on the created map data acquired by the created map data acquisition unit 30, for example.

For example, as described above, it is assumed that the purpose of registration in the registration dated February 3, 2018 is determined to be a separate writing based on the registration information data shown in FIG. In this case, the created map data acquisition unit 30 sends a request for transmission of the lot number including the prefecture name for this real estate and the created map data of the geological survey map associated with the date of the registration to the registration information providing service 14. Send. For example, a map for creating a land area survey map created during the prescribed period until February 3, 2018 for the land of 123-4, B-cho, A-city, X prefecture and 123-11, B-cho, A-city, X prefecture. The data transmission request is transmitted to the registration information providing service 14.

Then, the registration information providing service 14 was created in response to the reception of the transmission request for the real estate corresponding to the lot number associated with the transmission request within a predetermined period up to the registration date associated with the transmission request. The created map data showing the geological survey map is transmitted to the server 10. Then, the created map data acquisition unit 30 of the server 10 receives the transmitted created map data. Here, for example, for the land of 123-4, B-cho, A-city, X prefecture, and the land of 123-11, B-cho, A-city, X prefecture, the land area survey map created during the predetermined period until February 3, 2018 is created. Map data is sent. Here, the created map data for one geological survey map may be transmitted, or the created map data for a plurality of geological survey maps may be transmitted.

Then, the map data management unit 32 executes generation of new boundary point setting data, update of polygon data, and generation of new polygon data based on the created map data received from the registration information providing service 14.

For example, the map data management unit 32 identifies the positions of a plurality of boundary points shown in the received created map data.

Then, the map data management unit 32 generates boundary point setting data corresponding to the boundary points for each of these boundary points. Then, the map data management unit 32 stores the generated boundary point setting data in the boundary point setting data storage unit 22a.

Here, for example, the map data management unit 32 has boundary point setting data including position data indicating a position within a predetermined distance from the position of the boundary point shown in the created map data (hereinafter referred to as the position of interest). May be specified. Then, the map data management unit 32 may generate new boundary point setting data including the same boundary point ID as the boundary point ID of the specified boundary point setting data. In this case, the setting sequence number of the generated boundary point setting data is set to the number next to the maximum setting sequence number in the boundary point setting data including the boundary point ID.

Here, if there is no boundary point setting data including position data indicating a position within a predetermined distance from the position of interest, the map data management unit 32 uses new boundary point setting data including a new boundary point ID. May be generated. In this case, 1 is set in the setting sequence number of the generated boundary point setting data.

For example, the position of interest is set in the value of the position data of the newly generated boundary point setting data. For the value of the setting timing data of the generated boundary point setting data, for example, the value of the created date data included in the received created map data or the date of the registration is set. Further, for the value of the corresponding map type data of the generated boundary point setting data, for example, the value of the map type data included in the received created map data is set. Further, for the value of the intensity data of the generated boundary point setting data, for example, the value of the intensity data associated with the value of the map type data in the map type intensity corresponding data is set.

For example, new boundary point setting data having boundary point IDs of 111, 112, 113, and 114 are generated based on the created map data corresponding to the registration information data shown in FIG. In this case, the setting sequence numbers of the new boundary point setting data whose boundary point IDs are 111, 112, 113, and 114 are 4, 4, 4, and 6, respectively.

FIG. 9 is a diagram showing an example of new boundary point setting data in which the boundary point ID generated in this way is 111. The setting sequence number of the boundary point setting data shown in FIG. 9 is set to 4, which is the next number after the setting sequence number of the boundary point setting data shown in FIG. Further, in the position data of the boundary point setting data shown in FIG. 9, the position of the boundary point shown in the created map data of the geological survey map acquired as described above is set. Further, February 3, 2018 (February 3, 2018), which is the registration date, is set in the setting timing data of the boundary point setting data shown in FIG. A "geographical survey map" is set for the value of the corresponding map type data of the boundary point setting data shown in FIG. 9, and "3.0" is set for the value of the intensity data.

At this time, new boundary point setting data including new boundary point IDs having boundary point IDs of 115 and 116, respectively, is generated based on the created map data. In this case, the setting sequence numbers of the new boundary point setting data whose boundary point IDs are 115 and 116 are both 1.

Further, in the present embodiment, the map data management unit 32 generates polygon data representing a polygon including a boundary point whose position is indicated in the new boundary point setting data as a vertex. Here, for example, the polygon shown in the created map data acquired by the created map data acquisition unit 30 may be specified. Then, polygon data corresponding to the specified polygon may be generated.

For example, as described above, in the registration information data shown in FIG. 2, the land whose lot number is 123-4, B-cho, A-city, X prefecture is 123-4, according to the separate registration dated February 3, 2018. It is shown that it was divided into land and land 123-11. Based on this, for example, based on the created map data showing the acquired geological survey map, FIGS. 10 and 10 correspond to the land of 123-4 and 123-11 of B-cho, A city, X prefecture, respectively. The polygon data shown in 11 may be generated. Here, for example, as shown in FIG. 10, the value of the boundary point ID group data is "111 (4), 112 (4), 115 (1), 116 (1)", B town, A city, X prefecture. Polygon data corresponding to the land of No. 123-4 is generated. The value "111 (4)" included in the boundary point ID group data corresponds to the boundary point corresponding to the boundary point setting data in FIG.

Further, as shown in FIG. 11, the value of the boundary point ID group data is "113 (4), 114 (6), 116 (1), 115 (1)", No. 123, B town, A city, X prefecture. Polygon data corresponding to 11 lands are generated.

Further, for the value of the generation time data of these polygon data, for example, the value of the creation date data included in the received created map data or the registration date corresponding to the created map data is set. In the examples of FIGS. 10 and 11, the registration date of February 3, 2018 (February 3, 2018) is set as the value of the data at the time of occurrence.

At this time, the polygon data corresponding to the land of 123-4, B-cho, A-city, X-prefecture before the division is updated, and the value of the data at the time of disappearance is set as shown in FIG. For the value of the extinction time point data, for example, the value of the creation date data included in the received created map data or the registration date corresponding to the created map data is set. For example, February 3, 2018 (February 3, 2018), which is the same value as the value of the data at the time of occurrence of the new polygon data shown in FIGS. 10 and 11, is the data at the time of disappearance of the polygon data shown in FIG. Set to a value.

In the present embodiment, the lot number map image generation unit 34 generates a map image such as the lot number map image illustrated in FIGS. 3 and 4 based on, for example, polygon data and boundary point setting data. The lot number map image shows the correspondence between the lot number and the lot number.

For example, the quadrangular polygon whose lot number is shown as 123-4 in FIG. 3 is a polygon corresponding to the polygon data shown in FIG. 8 or FIG. FIG. 3 shows the situation before the registration of the separate writing dated February 3, 2018.

Further, for example, the quadrangular polygon whose lot number is shown as 123-4 in FIG. 4 is a polygon corresponding to the polygon data shown in FIG. Further, the quadrangular polygon whose lot number is shown as 123-11 in FIG. 4 is a polygon corresponding to the polygon data shown in FIG. FIG. 4 shows the situation after the registration of the separate writing dated February 3, 2018.

In the present embodiment, the request receiving unit 36 receives a request from a user of the terminal 12, for example.

In the present embodiment, the data transmission unit 38 transmits data according to the request received by the request reception unit 36 to the terminal 12, for example.

Here, for example, it is assumed that the request receiving unit 36 has received the designation of the location (for example, the designation of latitude and longitude, address, lot number, etc.) by the user of the terminal 12. In this case, the lot number map image generation unit 34 may generate the lot number map image of the designated place. Then, the data transmission unit 38 may transmit the generated lot number map image to the terminal 12. Then, the lot number map image transmitted by the terminal 12 may be displayed on the display.

Further, for example, it is assumed that the request reception unit 36 has received a request for transmission of registration information associated with the lot number shown in the lot number map image. In this case, the data transmission unit 38 may transmit the registration information of the lot number to the terminal 12.

Further, it is assumed that the request receiving unit 36 has accepted the designation of the vertices included in the polygon shown in the lot number map image. In this case, the data transmission unit 38 may transmit a plurality of boundary point setting data indicating the setting history of the boundary points corresponding to the designated vertices to the terminal 12. Further, the data transmission unit 38 may transmit map data indicating a map or a drawing associated with each of the plurality of boundary point setting data to the terminal 12. Then, the value of the boundary point setting data and the map or drawing indicated by the map data may be displayed on the terminal 12.

Hereinafter, an example of the flow of processing executed on the server 10 according to the present embodiment based on the given registration information data will be described with reference to the flow chart illustrated in FIG.

First, the determination unit 28 determines whether or not the given registration information data satisfies the acquisition condition (S101).

If it is determined that the acquisition conditions are not satisfied (S101: N), the process shown in this processing example is terminated.

If it is determined that the acquisition conditions are satisfied (S101: Y), the created map data acquisition unit 30 creates a map or drawing of the real estate created at the time of registration shown in the given registration information data. The map data is acquired from the registration information providing service 14 (S102).

Then, the map data management unit 32 generates a plurality of boundary point setting data based on the created map data acquired in the process shown in S102 (S103).

Then, the map data management unit 32 generates one or a plurality of polygon data and updates the one or a plurality of polygon data based on the created map data acquired by the process shown in S102 (S104). , The process shown in this process example is terminated.

FIG. 14 is a diagram showing another example of the registration information data. In the registration information data shown in FIG. 14, in the latest registration (registration dated July 6, 2016), the land of 234-1, B town, A city, X prefecture is 234-1, 234, B town, A city, X prefecture. It is shown that it was divided into numbers 17 to 234 and 33. In this case, the prescribed period until July 6, 2016 for the land of 123-1, B-cho, A-shi, X and the land of 123-17-33, B-cho, A-shi, X (18 brushes of land). The map data created in the geological survey map will be acquired. In this case, as described above, the created map data for one geological survey map may be acquired, or the created map data for a plurality of geological survey maps may be acquired.

FIG. 15 is a diagram showing still another example of the registration information data. In the registration information data shown in FIG. 15, in the latest registration (registration dated August 6, 1st year of Reiwa), the land of 345 B-cho, A city, X prefecture is the land of 345-1, B-cho, A city, X prefecture. , And, it is shown that the land was divided (actual division) on the land of 345-2, B town, A city, X prefecture. In this case, a land area survey map created for the land of 345-1, B-cho, A-shi, X and 345-2, B-cho, A-shi, X, during the prescribed period until August 6, 1st year of Reiwa. Creation map data will be acquired. In this case, two polygon data in which the values of the lot number and house number data are "345-1" and "345-2", respectively, are newly generated. Then, for the polygon data in which the value of the lot number and house number data is "345", the value of the data at the time of disappearance (2019/8/6) is set.

FIG. 16 is a diagram showing still another example of the registration information data. In the registration information data shown in FIG. 16, the character string indicating the cause and the date [registration date] data indicating the latest registration (registration dated February 3, 2018) includes "kara-separation". There is. FIG. 17 is a diagram showing still another example of the registration information data. In the registration information data shown in FIG. 17, the character string indicated by the cause and the date [registration date] data indicating the latest registration (registration dated August 6, 1991) includes "kara-separation". ing. In these cases as well, the purpose of the registration is the division (that is, the acquisition condition is satisfied), as in the case where the character string indicated by the cause and the date [registration date] data includes "division". It may be determined by the determination unit 28.

Further, instead of the registration information data shown in FIG. 2, the boundary point setting data shown in FIG. 9 and the polygon data shown in FIGS. 10 and 11 may be generated based on the registration information data shown in FIG. Further, instead of the registration information data shown in FIG. 15, the boundary point setting data may be generated, and the polygon data may be generated and updated based on the registration information data shown in FIG.

FIG. 18 is a diagram showing still another example of the registration information data. In the registration information data shown in FIG. 18, the cause and the date [registration date] data indicating the latest registration (registration dated July 6, 1993) include "results". There is. In this case, the determination unit 28 may determine that the purpose of the registration satisfies the acquisition conditions.

Although it is shown in FIG. 18 that the division was performed on July 6, 1993, the cadastral survey map is not created, but the cadastral map that is the result of the national land survey is created. Therefore, in this case, even if the created map data acquisition unit 30 requests the registration information providing service 14 to transmit the latest created map data associated with the lot number including the prefecture name corresponding to the registration information. good. Then, the registration information providing service 14 receives the latest created map data (in this case, created map data indicating the cadastral map) of the real estate corresponding to the lot number associated with the transmission request in response to the reception of the transmission request. It may be transmitted to the server 10. Then, the map data management unit 32 may update the map data stored in the map data storage unit 22 based on the created map data indicating the cadastral map.

In addition, even if the character string indicated by the cause and its date [registration date] data includes "results from cadastral survey", "results from" are also included. Therefore, in this case as well, the determination unit 28 may determine that the purpose of the registration satisfies the acquisition conditions. Then, the map data may be updated based on the latest created map data for the real estate corresponding to the registration information data.

Causes included in the registration information data and its date [Registration date] The character string indicated by the data may include "cartography", "right conversion date under the Urban Redevelopment Law", or "replacement disposal". be. Similarly, in these cases, the determination unit 28 may determine that the purpose of the registration satisfies the acquisition conditions. Then, the map data may be updated based on the latest created map data for the real estate corresponding to the registration information data.

In addition, for example, if the character string indicated by the cause and its date [registration date] data includes "(circled number 3) error" and does not include "results by", the determination unit determines that the acquisition conditions are satisfied. It may be determined by 28. In this case, the created map data acquisition unit 30 may acquire the created map data showing the geological survey map corresponding to the registration information from the registration information providing service 14. Then, the map data may be updated based on the created map data showing the cadastral survey map. In this way, when the purpose of registration indicated by the registration information is an error in the land area without the result of the national land survey, the created map data acquisition unit 30 creates the real estate indicated by the registration information at the time of registration of the error. The created map data showing the completed land area survey map may be acquired.

As mentioned above, the geological survey map may or may not be created at the time of registration. Based on this, the created map data acquisition unit 30 acquires the created map data indicating the latest map or drawing created for the real estate indicated by the registration information when the created map data indicating the geological survey map does not exist. You may do so.

For example, the created map data acquisition unit 30 provides registration information with a lot number including the prefecture name of the real estate corresponding to the registration information data and a request for transmission of the creation map data of the land area survey map associated with the registration date. It is assumed that the data is sent to the service 14. Then, it is assumed that the registration information providing service 14 returns to the server 10 that such map data for creating a geological survey map does not exist.

In this case, the created map data acquisition unit 30 may request the registration information providing service 14 to transmit the latest created map data associated with the lot number including the prefecture name corresponding to the registration information data. .. Then, the registration information providing service 14 may transmit the latest created map data about the real estate corresponding to the lot number associated with the transmission request to the server 10 in response to the reception of the transmission request. Then, the map data management unit 32 may update the map data stored in the map data storage unit 22 based on the latest created map data.

Further, in the present embodiment, the map data management unit 32 may update the map data of the real estate indicated by the registration information when the purpose of the registration shown in the registration information is a combination or a change of the ground. ..

In this case, for example, a predetermined condition for the determination unit 28 to update the map data stored in the map data storage unit 22 for the purpose of registration shown in the registration information acquired by the registration information acquisition unit 24. May be determined whether or not the above is satisfied. Hereinafter, a predetermined condition for updating the map data stored in the map data storage unit 22 will be referred to as an update condition. Here, the determination unit 28 may determine whether or not the purpose of registration in the latest registration shown in the registration information satisfies the update condition.

As the update condition, for example, the purpose of registration shown in the registration information acquired by the registration information acquisition unit 24 (for example, the purpose of registration in the latest registration) is a joint writing. For example, in the registration information data shown in FIG. 19, "write" is added to the character string indicated by the cause and the date [registration date] data indicating the latest registration (registration dated January 7, 2nd year of the Ordinance). It is included. In this case, it may be determined that the purpose of the registration is a joint writing (that is, the renewal condition is satisfied).

In this case, the map data management unit 32 may update the polygon data stored in the polygon data storage unit 22c. In the example of FIG. 19, the polygon indicated by the polygon data corresponding to the lot number of 456-7, B town, A city, X prefecture, and the polygon indicated by the polygon data corresponding to the lot number of 456-8, B town, A city, X prefecture are combined. Polygon data indicating the polygons may be generated. In this case, polygon data including the boundary point of the polygon corresponding to the lot number of 456-7, B town, A city, X prefecture and the boundary point of the polygon corresponding to the lot number of 456-8, B town, A city, X prefecture is generated. The Rukoto. In this case, the created map data is not acquired.

Further, as another update condition, for example, the purpose of registration shown in the registration information acquired by the registration information acquisition unit 24 (for example, the purpose of registration in the latest registration) may be a change of ground.

For example, if the cause indicating the latest registration and the character string indicated by the date [registration date] data include "change of ground", the purpose of the registration is change of ground (that is, the update condition is satisfied). ) May be determined. In addition, when the cause indicating the latest registration and the character string indicated by the date [registration date] data include "(circled number 2) error" and do not include the character string related to the change of land area. It may be determined that the purpose of the registration is to change the ground (that is, satisfy the renewal conditions).

Then, in these cases, the map data management unit 32 updates the value of the ground data of the polygon data indicating the real estate corresponding to the registration, which is stored in the polygon data storage unit 22c, based on the registration information data. You may.

In this embodiment, when the polygon data is updated or the lot number map image is updated, geometric transformation such as affine transformation for the polygon may be performed.

It is not possible to identify what kind of change has occurred in the shape or size of the land from the registration information alone. Therefore, in the present embodiment, as described above, based on the registration information satisfying the acquisition conditions, the map or drawing showing the real estate created by the registration information at the time of registration shown in the registration information is shown. Map data is now acquired. Then, the map data stored in the map data storage unit 22 is updated based on the acquired created map data. Therefore, in the present embodiment, changes in the shape and size of the real estate can be accurately captured, and the changes can be reflected in the map data stored in the map data storage unit 22. As a result, according to the present embodiment, it is possible to reduce the time and effort required for maintenance of the map data stored in the map data storage unit 22.

The present invention is not limited to the above-described embodiment.

For example, the plurality of boundary point setting data may not be data managed by a single server 10, but may be data managed by a blockchain (shared management by a plurality of computers connected to each other by P2P). The polygon data may also be data managed by the blockchain instead of data managed by a single server 10.

Further, the above-mentioned specific character strings and numerical values, as well as specific character strings in the drawings are examples, and the present invention is not limited to these character strings and numerical values.

10 server, 10a processor, 10b storage unit, 10c communication unit, 10d output unit, 10e input unit, 12 terminal, 12a processor, 12b storage unit, 12c communication unit, 12d output unit, 12e input unit, 14 registration information providing service, 16 computer network, 20 registration information storage unit, 22 map data storage unit, 22a boundary point setting data storage unit, 22b map type strength compatible data storage unit, 22c polygon data storage unit, 24 registration information acquisition unit, 26 registration information update unit. , 28 Judgment unit, 30 Created map data acquisition unit, 32 Map data management unit, 34 Land number map image generation unit, 36 Request reception unit, 38 Data transmission unit.

Claims (11)

Map data storage means for storing map data showing multiple real estate,
Registration information acquisition means to acquire real estate registration information,
A determination means for determining whether or not a predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, and
When it is determined that the predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, the registration is made at the time of registration shown in the registration information. Created to acquire map data that shows the map or drawing created for the real estate indicated by the information and that can identify the position of the polygon associated with the indicated land section and the position of the apex contained in the polygon. Map data acquisition method and
Including a map data updating means for updating the map data stored in the map data storage means based on the created map data.
When the purpose of the registration is a division, the created map data acquisition means acquires the created map data showing a geological survey map created for the real estate indicated by the registration information at the time of registration of the division.
A map data update system featuring that . Map data storage means for storing map data showing multiple real estate,
Registration information acquisition means to acquire real estate registration information,
A determination means for determining whether or not a predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, and
When it is determined that the predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, the registration is made at the time of registration shown in the registration information. Created to acquire map data that shows the map or drawing created for the real estate indicated by the information and that can identify the position of the polygon associated with the indicated land section and the position of the apex contained in the polygon. Map data acquisition method and
Including a map data updating means for updating the map data stored in the map data storage means based on the created map data.
The created map data acquisition means shows a geological survey map created for the real estate indicated by the registration information at the time of registration of the error when the purpose of the registration is an error of the land area without the result of the national land survey. Acquire the created map data,
A map data update system featuring that . The created map data acquisition means acquires the created map data showing the latest map or drawing created for the real estate indicated by the registration information when the created map data indicating the geological survey map does not exist.
The map data update system according to claim 1 or 2 , wherein the map data is updated. Map data storage means for storing map data showing multiple real estate,
Registration information acquisition means to acquire real estate registration information,
A determination means for determining whether or not a predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, and
When it is determined that the predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, the registration is made at the time of registration shown in the registration information. Created to acquire map data that shows the map or drawing created for the real estate indicated by the information and that can identify the position of the polygon associated with the indicated land section and the position of the apex contained in the polygon. Map data acquisition method and
Including a map data updating means for updating the map data stored in the map data storage means based on the created map data.
The map data updating means updates the map data for the real estate indicated by the registration information when the purpose of the registration shown in the registration information is a combination or a change of ground.
A map data update system featuring that . The created map data acquisition means acquires created map data indicating a map or drawing created for the real estate indicated by the registration information at the time of the latest registration shown in the registration information.
The map data update system according to any one of claims 1 to 4 , characterized in that. The registration information acquisition means is the registration information acquisition step to acquire the registration information of the real estate, and
A determination step in which the determination means determines whether or not a predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information.
When it is determined that the created map data acquisition means includes the predetermined character string in the character string representing the purpose of registration shown in the acquired registration information, it is shown in the registration information. It is possible to specify the position of the polygon associated with the section of the land shown and the position of the apex included in the polygon, which shows the map or drawing created for the real estate indicated by the registration information at the time of registration. To acquire the created map data The created map data acquisition step and
The map data update means includes a map data update step of updating map data indicating a plurality of real estate stored in the map data storage means based on the created map data.
In the created map data acquisition step, when the purpose of the registration is a division, the created map data acquisition means shows the geological survey map created for the real estate indicated by the registration information at the time of registration of the division. Get the created map data,
A method of updating map data, which is characterized by this. The registration information acquisition means is the registration information acquisition step to acquire the registration information of the real estate, and
A determination step in which the determination means determines whether or not a predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information.
When the created map data acquisition means determines that the predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, it is shown in the registration information. It is possible to specify the position of the polygon associated with the section of the land shown and the position of the apex included in the polygon, which shows the map or drawing created for the real estate indicated by the registration information at the time of registration. To acquire the created map data The created map data acquisition step and
The map data update means includes a map data update step of updating map data indicating a plurality of real estate stored in the map data storage means based on the created map data.
In the created map data acquisition step, when the created map data acquisition means is an error in the land area without the result of the national land survey, the real estate indicated by the registration information at the time of registration of the error Acquire the created map data showing the created geological survey map,
A method of updating map data, which is characterized by this. The registration information acquisition means is the registration information acquisition step to acquire the registration information of the real estate, and
A determination step in which the determination means determines whether or not a predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information.
When the created map data acquisition means determines that the predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, it is shown in the registration information. It is possible to specify the position of the polygon associated with the section of the land shown and the position of the apex included in the polygon, which shows the map or drawing created for the real estate indicated by the registration information at the time of registration. To acquire the created map data The created map data acquisition step and
The map data update means includes a map data update step of updating map data indicating a plurality of real estate stored in the map data storage means based on the created map data.
In the map data update step, the map data update means updates the map data for the real estate indicated by the registration information when the purpose of the registration shown in the registration information is a combination or a change of ground. ,
A method of updating map data, which is characterized by this. Registration information acquisition procedure to acquire real estate registration information,
A determination procedure for determining whether or not a predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information.
When it is determined that the predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, the registration is made at the time of registration shown in the registration information. Created to acquire map data that shows the map or drawing created for the real estate indicated by the information and that can identify the position of the polygon associated with the indicated land section and the position of the apex contained in the polygon. Map data acquisition procedure,
Based on the created map data, a computer is made to execute a map data update procedure for updating map data indicating a plurality of real estate stored in the map data storage means.
In the created map data acquisition procedure, when the purpose of the registration is a division, the created map data showing the geological survey map created for the real estate indicated by the registration information at the time of registration of the division is acquired.
A program characterized by that . Registration information acquisition procedure to acquire real estate registration information,
A determination procedure for determining whether or not a predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information.
When it is determined that the predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, the registration is made at the time of registration shown in the registration information. Created to acquire map data that shows the map or drawing created for the real estate indicated by the information and that can identify the position of the polygon associated with the indicated land section and the position of the apex contained in the polygon. Map data acquisition procedure,
Based on the created map data, a computer is made to execute a map data update procedure for updating map data indicating a plurality of real estate stored in the map data storage means.
In the created map data acquisition procedure, when the purpose of the registration is an error in the land area without the result of the national land survey, the area survey map created for the real estate indicated by the registration information at the time of registration of the error is shown. Acquire the created map data,
A program characterized by that . Registration information acquisition procedure to acquire real estate registration information,
A determination procedure for determining whether or not a predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information.
When it is determined that the predetermined character string is included in the character string representing the purpose of registration shown in the acquired registration information, the registration is made at the time of registration shown in the registration information. Created to acquire map data that shows the map or drawing created for the real estate indicated by the information and that can identify the position of the polygon associated with the indicated land section and the position of the apex contained in the polygon. Map data acquisition procedure,
Based on the created map data, a computer is made to execute a map data update procedure for updating map data indicating a plurality of real estate stored in the map data storage means.
In the map data update procedure, when the purpose of registration shown in the registration information is a combination or a change of ground, the map data for the real estate indicated by the registration information is updated.
A program characterized by that .

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