JP2005241729A - System and method for generating temporary map data - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To generate data useful for saving labor in a map-making stipulated in Article 17 of the Law concerning the Registration of Immovables. <P>SOLUTION: In a system for generating temporary map data, the following steps are executed: a step to read acreage survey map data out of an acreage survey map data storage section wherein acreage survey map data including the data of boundaries and adjacency are stored for each of the lot numbers of some of the lot numbers included in a prescribed area; a temporary map data generating step to generate, by using the extracted acreage survey map data, temporary map data including the data of boundaries and adjacency corresponding to the lot numbers other than the lot numbers corresponding to the acreage survey map and to store the temporary map data in a temporary map data storage section. Then, a land or a boundary line specified by the acreage survey map data is displayed distinctively from the land or the boundary line included in the temporary map data derived from the acreage survey map data. Thus, whether surveying is necessary or not is easily determined and labor can be saved. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a technique for generating map data for use in a map maintenance business.

  About half of the maps currently provided at the registry office are public maps with very low accuracy. A public map is not a formal map, but a drawing that conforms to the map, and has no legal basis. Public maps cause border disputes and are obstacles to implementing public works. For this reason, it is desired to maintain a so-called Article 17 map defined in Article 17 of the Real Estate Registration Act. The Article 17 map is provided only in areas where high-precision surveys and surveys have been completed. However, the creation of the Article 17 map requires surveying all the target areas, and surveying takes a lot of time and labor, so currently the Article 17 map has not been created for many areas. Remains.

  On the other hand, a high-precision land survey map created for each brush is accumulated in the registry office. This area survey map is a drawing created based on survey data and submitted at the time of registration application, and is more accurate than a public map. However, it is not fully utilized because it does not exist for all lands, the number is huge, and it is difficult to discriminate the latest land survey map. For example, useless work such as duplicating surveying data that can be extracted from a geodetic survey map has occurred.

  For example, there exists a technique for automatically associating a target side point in a given map (for example, a geodetic survey map) with a corresponding position on a map (Article 17 map) as a conversion destination. (For example, refer to Patent Document 1). That is, the coordinate data of the conversion source reference point, the conversion destination reference point, and the target side point is input, and the distance ratio calculation processing means and the conversion destination side point calculation means have the same distance ratio based on the distance method Associate the target point with the position. Alternatively, the target side point is made to correspond to the position where the triangle formed by the reference point and the side point is similar based on the point method by the triangle internal angle calculation processing unit and the conversion destination side point calculation unit. The conversion based on the distance method or the point method is automatically allocated by determining the positional relationship by the allocation processing means.

In addition, for example, there is a technique for associating a lot number display map (for example, a public map) and a house display map (a map having higher accuracy than the public map) (for example, see Patent Document 2). That is, the map information management system using the technology includes a lot number display map management system for managing lot number display maps, a house display map management system for managing house display maps, and a map search system. In the reference point database (DB) of the map search system, a pair of reference points that define the conversion relationship between the coordinate systems of the lot number display map and the house display map, and the lot number display landform based on the public map are transformed. Auxiliary reference points are stored. The map search system transforms the lot number display map based on the public map according to the residence display map using the data stored in the reference point DB.
JP 7-332979 A JP 2003-22450 A

  However, such a conventional technique is based on the premise that the lot number to be processed is specified, and is not directly related to labor saving in creating the 17th article map. That is, the lot number of the official map does not necessarily indicate the current lot number as it is, and there is a problem that a lot number that cannot be handled is included in the public map. Therefore, it is not practical to execute the process using the lot number as a key.

  Accordingly, an object of the present invention is to provide a novel technique for generating data useful for labor saving in the creation of Article 17 map.

  The temporary map data generation device according to the present invention is a land area survey map data storage in which a land area survey map data including data relating to a boundary and an adjacency relation is stored for each of a part of house numbers included in a predetermined area. Using the means for extracting the geodetic survey map data and the extracted geodetic survey map data, the temporary map data including the data relating to the boundary and the adjacency relationship for the lot number different from the lot number corresponding to the geodetic survey map data is generated. And temporary map data generating means for storing in the temporary map data storage unit.

  Thus, in order to generate data on boundaries and adjacency relationships for lot numbers different from lot numbers corresponding to the lot survey data, using high-precision survey data, the survey is performed effectively using the geogram survey data. It becomes possible to generate basic data for determining whether or not the data is necessary. For example, if the data related to lot number A and lot number B is included in the geodetic survey map data, the lot number A is the lot number C and the lot number B is the lot number C. It can be estimated that a lot number C exists between them. Therefore, basic data for determining the necessity of surveying can be obtained by registering data relating to the lot number C in the temporary map data storage unit.

  In addition, the temporary map data generating means described above includes data relating to the boundary and adjacency relations for the lot numbers corresponding to the geodetic survey map data, using the geodetic survey map data stored in the geodetic survey map data storage unit. The temporary map data generating device according to the present invention further includes means for generating temporary map data and storing the temporary map data in the temporary map data storage unit, and further using the temporary map data stored in the temporary map data storage unit. You may make it have a means to produce | generate and output the temporary map about the predetermined area which can specify the lot number corresponding to the survey map data, or the boundary line concerning the lot number. Since the brush data registered in the geodetic survey map data has high accuracy, the user can specify the reliability of the data of the brush by changing the display method, etc., so that the surveying is not necessary again Can specify brushes. Note that the brush included in the temporary map data generated from the land survey data may be specified.

  Furthermore, the temporary map data generating means described above further includes a public map data storage unit storing public map data having a lower accuracy than the geodetic survey map data, and the temporary map data generating means described above Of the lot numbers that are different from the lot numbers corresponding to the geodetic survey map data using the temporary map data stored in the temporary map data storage unit and the official map data stored in the public map data storage unit, You may make it have a means to produce | generate the data regarding a boundary and an adjacent relationship about the lot numbers other than the lot number which can produce | generate the data regarding a boundary and an adjacent relationship based on figure data. Combining low-accuracy public map data and high-accuracy land survey data makes it possible to generate data related to boundaries and adjacency relationships for more brushes. However, since the reliability is relatively low, if it can be recognized, it can be used as basic data for determining the necessity of surveying.

  The temporary map data generation apparatus according to the present invention can be realized by a computer that executes a specific program. The specific program is, for example, a flexible disk, a CD-ROM, a magneto-optical disk, or a semiconductor memory. And stored in a storage medium such as a hard disk or a storage device. Moreover, it may be distributed as a digital signal via a network. Note that data being processed is temporarily stored in a storage device such as a computer memory.

  According to the present invention, it is possible to generate data useful for labor saving in creating the 17th article map.

  A system configuration diagram according to an embodiment of the present invention is shown in FIG. The temporary map generation apparatus 1000 is connected to a registry map DB 1001, a land survey map DB 1003, a temporary map DB 1005, an unknown lot number list storage unit 1007, and an output device 1009 that is, for example, a printer or a display device. In addition, the temporary map generation device 1000 includes a high accuracy data generation unit 1011, a medium accuracy data generation unit 1013, a low accuracy data generation unit 1015, and a temporary map output unit 1017. Details of these processes will be described in the description of the process flow.

  Data generated via another related system (not shown) is stored in advance in the registry map DB 1001 and the land survey map DB 1003, and the temporary map generation apparatus 1000 includes the registry map DB 1001 and the land survey map DB 1003. Perform processing with reference to. Here, processing in other related systems will be briefly described. Other related systems include, for example, an electronic application acceptance system, a registration information system, and a map information system. A user ID management DB is connected to the electronic application acceptance system, and a registration item DB is connected to the registration information system. The map information system includes the system shown in FIG.

  For example, the registration applicant accesses the electronic application acceptance system via the network by operating the user terminal, and transmits the registration application form and the data of the geodetic survey map. Here, the land survey data is electronic data generated by a land and house investigator using a survey map creation system or the like. The electronic application reception system refers to the user ID management DB, performs processing such as user authentication, application reception, and format examination, and distributes the processing to each system according to the application content. For example, in the case of a registration application, the registration application form data received from the user is transmitted to the registration information system, and the data of the geodetic survey map is transmitted to the map information system. When the registration information system receives the data of the registration application form from the electronic application reception system, the registration information system performs a registration process and stores the data generated in the registration process in the registration item DB. Since the registration process is not the gist of the present invention, a detailed description thereof will be omitted. As a result, data relating to the registration application form is stored in the registration item DB. When the map information system receives the data of the geodetic survey map from the electronic application acceptance system, the map information system generates a record to be stored in the table of the geodetic survey map DB 1003 based on the received data and stores it in the geodetic survey map DB 1003. In some cases, the operator inputs data that needs to be added. As described above, the geodetic survey map is a drawing with high accuracy, and the geodetic survey map DB 1003 stores data with high accuracy.

  When the registration information system ends the registration process, the registration information system transmits notification data to that effect to the electronic application acceptance system. And an electronic application reception system transmits the notification data of the registration process completion to a user terminal. Further, the map information system causes the temporary map generation apparatus 1000 described in detail later to execute processing at a predetermined timing.

  In some cases, for example, a registration application form and a land surveying map may be submitted on paper without going through the electronic application acceptance system. In this case, for example, the operator manually inputs data and registers it in the registered entry DB and the land survey map DB 1003. In the registry map DB 1001, map data based on a public map for a predetermined area is stored in advance via a map information system or input by an operator. As described above, the public map is a drawing with lower accuracy than the geodetic survey map, and the registry map DB 1001 stores data with low accuracy.

  The temporary map generation apparatus 1000 performs a series of processing with reference to the data of the registry map DB 1001 and the land survey map DB 1003 stored in this way. First, the high accuracy data generation unit 1011 refers to the geodetic survey map DB 1003, performs high accuracy temporary map data generation processing described in detail later, generates temporary map data, and stores the temporary map data in the temporary map DB 1005. Then, the process is transferred to the medium accuracy data generation unit 1013. For example, a notification that the high-accuracy temporary map data generation processing has been completed is output to the medium-accuracy data generation unit 1013. The medium accuracy data generation unit 1013 refers to the geodetic survey map DB 1003, performs intermediate accuracy temporary map data generation processing described in detail later, generates temporary map data, and stores the temporary map data in the temporary map DB 1005. Then, the process is transferred to the low accuracy data generation unit 1015. For example, a notification that the medium accuracy temporary map data generation processing has been completed is output to the low accuracy data generation unit 1015.

  The low accuracy data generation unit 1015 refers to the registry map DB 1001 and the geodetic survey map DB 1003, performs low accuracy temporary map data generation processing described in detail later, generates temporary map data, and stores the temporary map data in the temporary map DB 1005. In some cases, unknown lot number data is generated and stored in the unknown lot number list storage unit 1007. Furthermore, the data in the registry map DB 1001 may be updated. Then, the process is transferred to the temporary map output unit 1017. For example, a notification that the low-accuracy temporary map data generation processing has been completed is output to the temporary map output unit 1017. The temporary map output unit 1017 refers to the temporary map DB 1005 and the unknown lot number list storage unit 1007, and performs temporary map output processing described in detail later. When the temporary map output process is performed, the output device 1009 prints or displays the temporary map.

  The temporary map generation apparatus 1000 is a computer apparatus as shown in FIG. 2, and is connected to a memory 201, a CPU 203, a hard disk drive (HDD) 205, and a display device 209 (which may be an output device 1009). A display control unit 207, a drive device 213 for the removable disk 211, an input device 215, and a communication control unit 217 for connecting to a network are connected by a bus 219. An application program including an operating system (OS) and a program for realizing processing in the present embodiment is stored in the HDD 205, and is read from the HDD 205 to the memory 201 when executed by the CPU 203. It is. If necessary, the CPU 203 controls the display control unit 207, the communication control unit 217, and the drive device 213 to perform necessary operations. Further, data in the middle of processing is stored in the memory 201, and if necessary, stored in the HDD 205. A program for realizing the processing in the embodiment of the present invention is stored in the removable disk 211 and distributed, for example, is received from the drive device 213 or via the network and communication control unit 217, and is installed in the HDD 205. Such a computer apparatus realizes various functions described below by organically cooperating hardware such as the CPU 203 and the memory 201 described above with the OS and necessary application programs.

  The table structure of the geodetic survey map DB 1003 and stored data will be described with reference to FIGS. The area survey map DB 1003 includes a connection table, a brush point table, and a mustache figure table. The data stored in these tables is generated based on the land survey data. FIG. 3 shows an example of a land survey map based on the land survey data. FIG. 3 shows an example of a geodetic survey map based on the geodetic survey map data submitted together with the registration application for separating the brush of the lot number E. As shown in the example of FIG. 3, the ground surveying map data includes not only data related to the shape of the brushes to be registered (here, lot numbers E-1 and E-2), but also data related to adjacent brushes. Is also included. Specifically, it is possible to specify how the lot numbers K, D, ZZ, F, G, and J are adjacent to the lot numbers E-1 or E-2. Note that points indicated by black circles such as point numbers T12 and T15 indicate boundary points obtained by measuring public coordinates, and are actual points on the site. Pile is struck in the actual land. In the land survey data, these boundary points are associated with coordinate values on the system and public coordinate values. Further, points indicated by triangles such as point numbers W1 and W2 are points for indicating a boundary state with an adjacent brush, and coordinate values on the system are associated with these points. In addition, since the point shown by the triangle is a point which does not actually exist, public coordinates are not associated. In the example of FIG. 3, a line segment connecting a point indicated by a triangle such as point numbers W1 and W2 and a boundary point indicated by a black circle such as point numbers T12 and T15 is surrounded by an ellipse. This line segment is referred to as “beard” in the following description. A beard is a directed line segment starting from a point (boundary point) indicated by a black circle, and in this embodiment, processing is performed by regarding it as a part of the boundary of an adjacent brush that is not represented by the boundary line alone. . .

  FIG. 4 shows an example of a table configuration of the connection table of the land survey DB 1003 and stored data. The example of FIG. 4 includes a lot number column 400, a point 1 column 401, a point 2 column 402, and an adjacent lot number column 403. In the connection table, a record about the boundary line is registered, and in the example of FIG. 4, a record generated based on the land survey data as shown in FIG. 3 is registered. In the lot number column 400, lot numbers corresponding to brushes having a boundary line corresponding to the record are registered. In the point 1 column 401 and the point 2 column 402, the point numbers of the end points of the boundary line corresponding to the record are registered. In the adjacent lot number column 403, the lot numbers of the brushes adjacent to each other by the boundary line corresponding to the record (that share the boundary line) are registered. Since records are generated for each lot number, there are cases where a plurality of records corresponding to the same boundary line are registered as shown in the fourth and sixth lines, for example.

  FIG. 5 shows an example of the table structure of the writing point table in the land survey map DB 1003 and stored data. The example of FIG. 5 includes a point number column 500, a public X column 501, and a public Y column 502. In the brush boundary point table, records about boundary points (sometimes referred to as brush boundary points) are registered. In the example of FIG. 5, the record is generated based on the land survey data as shown in FIG. Records have been registered. In the public X column 501, the X coordinate value in the public coordinate of the boundary point corresponding to the record is registered. Similarly, in the public Y column 502, the Y coordinate value in the public coordinate of the boundary point corresponding to the record is registered. Although not shown, the table may include a column for registering the system coordinate value of the boundary point. In the present embodiment, the system coordinate value can be specified from the public coordinate value.

  FIG. 6 shows an example of the table configuration of the mustache graphic table of the land survey map DB 1003 and stored data. The example of FIG. 6 includes a point number column 600, a serial number column 601, a ΔX column 602, and a ΔY column 603. In the mustache figure table, records about beards corresponding to the boundary points are registered, and in the example of FIG. 5, records generated based on the land survey data as shown in FIG. 3 are registered. . That is, for example, a record corresponding to a boundary point without a shadow such as the boundary point T13 is not registered. A plurality of beards may be associated with one boundary point, and a single beard can be specified by registering a number in the sequence number column 601. In the ΔX column 602 and the ΔY column 603, the difference in the coordinate values on the system between the boundary point (black circle in FIG. 3) and the tip of the mustache (triangle in FIG. 3) is shown for each of the X and Y coordinates. It is registered. For example, “a12X” is registered in the first row of the column 602 of ΔX, and this “a12X” is “X coordinate value of W1 in system coordinates−X coordinate value of T12 in system coordinates”. Similarly, for example, “a12Y” is registered in the first row of the ΔY column 603, and “a12Y” is “Y coordinate value of W1 in system coordinates−Y coordinate value of T12 in system coordinates”. is there.

  The table configuration of the registry map DB 1001 will be described with reference to FIGS. The registry map DB 1001 includes a connection table and a writing point table. FIG. 7 shows an example of the table configuration of the connection table of the registry map DB 1001 and stored data. The example of FIG. 7 includes a lot number column 700, a point 1 column 701, and a point 2 column 702. The configuration is the same as that of the connection table (FIG. 4) of the geodetic survey DB 1003, but the adjacent lot number column is excluded, and a record about the boundary line is registered. The numbers registered in the point 1 column 701 and the point 2 column 702 are point numbers indicating boundary points on the public map.

  FIG. 8 shows an example of the table structure of the writing point table in the registry map DB 1001 and stored data. The example of FIG. 8 includes a point number column 800, an X column 801, a Y column 802, and a flag column 803. The structure is the same as that of the brush point table (FIG. 5) of the geodetic survey DB 1003, with a flag column 803 added, and records about boundary points are registered. In an X column 801, the X coordinate value on the public map of the boundary point corresponding to the record is registered. Similarly, in the Y column 802, Y coordinate values on the public map of the boundary points corresponding to the record are registered. As will be described in detail later, “completed” is registered in the flag column 803 when the temporary map DB 1005 has been associated with the record.

  The table configuration of the temporary map DB 1005 will be described with reference to FIGS. 9 and 10. The temporary map DB 1005 includes a connection table and a writing point table. FIG. 9 shows an example of the table configuration of the connection table of the temporary map DB 1005 and stored data. The example of FIG. 9 includes a lot number column 900, a point 1 column 901, a point 2 column 902, and an accuracy column 903. The structure is the same as the connection table (FIG. 4) of the geodetic survey DB 1003, and the accuracy column 903 is added, and a record about the boundary line is registered. In the accuracy column 903, any one of the values “high”, “medium”, and “low” representing the reliability of the boundary line is registered.

  FIG. 10 shows an example of the table structure of the writing point table of the temporary map DB 1005 and stored data. The example of FIG. 10 includes a point number column 100, a public X column 101, a public Y column 102, and a corresponding point column 103 in the registry map. The structure is the same as the writing point table (FIG. 5) of the geodetic survey map DB 1003, and the column 103 of the corresponding points in the registry map is added, and records about the boundary points are registered. As will be described in detail later, a point number on the public map with which the correspondence is made is registered in the column 103 of the corresponding point in the registry map.

  FIG. 11 shows an example of the structure and list data of the unknown lot number list stored in the unknown lot number storage unit 1007. The example of FIG. 11 includes a number (No.) column 1100, a lot number column 1101, and a remarks column 1102. In the lot number column 1101, for example, lot numbers corresponding to specific brushes registered in the registry map DB 1001 and the land survey map DB 1003 are registered in the registry map DB 1001 but are registered in the land survey map DB 1003. If there is an unregistered lot number, that lot number is registered. In the remarks column 1102, for example, the reason why the lot number is specified is registered.

  Next, processing contents of the temporary map generation apparatus 1000 illustrated in FIG. 1 will be described with reference to FIGS. First, FIG. 12 shows a main processing flow.

  First, the high accuracy data generation unit 1011 of the temporary map generation device 1000 performs high accuracy temporary map data generation processing (FIG. 12: step S1). Details of the high-accuracy temporary map data generation processing will be described later. When the high-accuracy temporary map data generation process ends, the medium-accuracy data generation unit 1013 of the temporary map generation apparatus 1000 performs a medium-accuracy temporary map data generation process (step S3). Details of the medium accuracy temporary map data generation processing will be described later. When the medium accuracy temporary map data generation process ends, the low accuracy data generation unit 1015 of the temporary map generation apparatus 1000 performs a low accuracy temporary map data generation process (step S5). Details of the low-accuracy temporary map data generation processing will be described later. When the low-accuracy temporary map data generation process ends, the temporary map output unit 1017 of the temporary map generation apparatus 1000 performs a temporary map output process (step S7). Details of the temporary map output processing will be described later. In this way, temporary map data generation processing and temporary map output processing are performed by the temporary map generation apparatus 1000.

  The high-accuracy temporary map data generation process (FIG. 12: step S1) will be described with reference to FIGS. First, the high-accuracy data generation unit 1011 of the temporary map generation apparatus 1000 reads all records in the connection table of the geodetic survey DB 1003 (FIG. 13: step S11). The read record is temporarily stored in a storage device such as a work memory area. Then, the high-accuracy data generation unit 1011 stores the record read in step S11 in the connection table of the temporary map DB 1005 (step S13). Since the connection table of the geodetic survey DB 1003 and the connection table of the temporary map DB 1005 have different configurations, the entire record cannot be transferred (replicated) as it is. That is, the connection table of the geodetic survey DB 1003 includes the adjacent lot number column 403, but the connection table of the temporary map DB 1005 does not include the adjacent lot number column. The connection table of the geodetic survey DB 1003 does not include the accuracy column, but the connection table of the temporary map DB 1005 includes the accuracy column 903. Therefore, in the processing of step S11 and step S13, data is migrated (replicated) for the lot number column, the point 1 column, and the point 2 column, which are items common to both tables. Further, the high accuracy data generation unit 1011 sets “high” in the accuracy column 903 of the record stored in the connection table of the temporary map DB 1005 in step S13 (step S15). When the data as shown in FIG. 14 is stored in the connection table of the geodetic survey DB 1003 by the processing of Steps S11 to S15, the connection table of the temporary map DB 1005 is shown in FIG. The data is stored as follows.

  Then, the high-accuracy data generation unit 1011 reads all records in the writing point table of the geodetic survey map DB 1003 (step S17). The read record is temporarily stored in a storage device such as a work memory area. Then, the high-accuracy data generation unit 1011 stores the record read in Step S17 in the writing point table of the temporary map DB 1005 (Step S19). Note that the configuration of the writing point table in the land survey map DB 1003 and the writing point table in the temporary map DB 1005 are different. That is, the writing point table in the land survey DB 1003 does not include the corresponding point column 103 in the registry map, but the writing point table in the temporary map DB 1005 includes the corresponding point column 103 in the registry map. It is included. For this reason, in the processing of step S17 and step S19, data is transferred (replicated) for the dot number column, the public X column, and the public Y column, which are items common to both tables. By such processing in step S17 and step S19, for example, when data as shown in FIG. 15 is stored in the writing point table of the geodetic survey map DB 1003, the writing point table in the temporary map DB 1005 includes Data is stored as shown in FIG.

  As described above, the high-accuracy temporary map data generation process is performed, and the process returns to the original process.

  The medium accuracy temporary map data generation process (FIG. 12: step S3) will be described with reference to FIGS. First, the medium accuracy data generation unit 1013 of the temporary map generation apparatus 1000 reads one record having a boundary point registered in the mustache graphic table from the connection table of the geodetic survey map DB 1003, and stores it as a work memory area or the like. Once stored in the apparatus (FIG. 16: step S31). That is, one record that satisfies the condition that the value of the column 401 of the point 1 and the value of the column 402 of the point 2 are included in the column 600 of the point number of the mustache graphic table is specified from the records in the connection table.

  Then, the medium accuracy data generation unit 1013 extracts a record having the same adjacent lot number as the record read in step S31 from the connection table of the geodetic survey map DB 1003, and temporarily stores it in a storage device such as a work memory area (step S33). . That is, among the records in the connection table, a record that satisfies the condition that the value of the adjacent lot number column 403 is equal to the value of the adjacent lot number column 403 of the record read in step S31 is specified.

  Further, the medium accuracy data generation unit 1013 extracts ΔX and ΔY of the beard graphic table based on one boundary point of the record read in step S31, calculates a unit vector of the beard, and stores a storage device such as a work memory area. (Step S35). That is, based on one of the values in the point 1 column 401 and the point 2 column 402 in the specified connection table record, the beard graphic table record is specified, and the value in the ΔX column 602 and the value in ΔY The value in column 603 is extracted. Then, a beard unit vector is calculated using the following equation (1).

Beard unit vector (X component, Y component) = (ΔX / (ΔX ² + ΔY ² ) ^1/2 , ΔY / (ΔX ² + ΔY ² ) ^1/2 ) (1)

  Then, the medium accuracy data generation unit 1013 determines whether another boundary point exists on the extension of the beard (step S37). That is, it is determined whether a boundary point (hereinafter referred to as another boundary point) associated with the record extracted in step S33 exists within a predetermined range at a position obtained by multiplying the unit vector of the beard by a predetermined number. For example, the unit vector of beard is (αX, αY), the system coordinate value of the boundary point that is the start point of the beard is (X, Y), the predetermined accuracy error is B, the predetermined number is t, the system of specific other boundary points When the coordinate value is (X1, Y1), X + t × αX is X1 × (1-B) or more and X1 × (1 + B) or less, and Y + t × αY is Y1 × (1-B) As described above, when Y1 × (1 + B) or less, it is determined that another boundary point exists on the extension of the beard. Note that t is changed at a predetermined interval within a possible range.

  When it is determined that there is no other boundary point on the beard extension (step S37: No route), the process proceeds to step S47 described later. On the other hand, when it is determined that another boundary point exists on the extension of the beard (step S37: Yes route), the medium accuracy data generation unit 1013 uses the other boundary point of the record read in step S31 to indicate the beard figure. ΔX and ΔY of the table are extracted, and a unit vector of the beard is calculated and temporarily stored in a storage device such as a work memory area (step S39). That is, the record of the mustache figure table is specified based on one of the values of the column 401 of point 1 and the value of column 402 of point 2 in the specified connection table record, which is not used in step S35. , ΔX column 602 and ΔY column 603 are extracted. Then, the unit vector of the beard is calculated using the equation (1) shown above.

  Then, the medium accuracy data generation unit 1013 determines whether there is another boundary point on the beard extension (step S41). The determination method is the same as in step S37. When it is determined that there is no other boundary point on the beard extension (step S41: No route), the process proceeds to step S47 described later. On the other hand, when it is determined that another boundary point exists on the extension of the beard (step S41: Yes route), the medium accuracy data generation unit 1013 generates new connection data and stores it in the connection table of the temporary map DB 1005. (Step S43). That is, a record corresponding to a line segment (boundary line) whose end point is the boundary point that is the start point of the beard and another boundary point that is found to be present on the extension of the beard in the determination process of step S37, and step S41. Records corresponding to the line segments (boundary lines) whose end points are the boundary point that is the start point of the beard and the other boundary points that are found to be present on the extension of the beard in the determination process of the temporary map DB 1005 Stored in the connection table. The lot number column 900 stores the adjacent lot number used in step S33.

  Then, the medium accuracy data generation unit 1013 sets “medium” in the accuracy column 903 of the record stored in the connection table of the temporary map DB 1005 in step S43 (step S45). Then, the medium accuracy data generation unit 1013 determines whether or not the processing has been completed for all the records in the connection table of the geodetic survey map DB 1003 (step S47). If it is not determined that the processing for all records has been completed (step S47: No route), the processing returns to step S31. On the other hand, if it is determined that the processing for all the records has been completed (step S47: Yes route), the medium-probability temporary map data generation processing is terminated, and the processing returns to the original processing.

  The processing flow (FIG. 16) of the medium accuracy temporary map data generation processing described above will be described below using a specific example. An example of data stored in each table of the geodetic survey map DB 1003 is shown in FIGS. FIG. 17A shows an example of data stored in the connection table. FIG. 17B shows an example of data stored in the writing point table, and FIG. 17C shows an example of data stored in the mustache graphic table. Moreover, the example of the map figure specified from the data of these tables is shown in FIG.

  First, one record is specified from the connection table (FIG. 17A) by the process of step S31. The record specified here satisfies the condition that the value of the column 401 of point 1 and the value of the column 402 of point 2 are registered in the mustache graphic table (FIG. 17C). First, when the records of the connection table (FIG. 17A) are viewed in order from the first row, T13 which is the value of the column 401 of the point 1 in the record of the first row is the beard graphic table (FIG. 17C). )) Is not registered, the record in the first line is not specified. In the record in the second row, both T14 which is the value of the column 401 of point 1 and T17 which is the value of the column 402 of point 2 are both registered in the mustache graphic table (FIG. 17C). Because it is specified.

  Then, in the process of step S33, a record having K as the value of the adjacent lot number column 403 of the record in the second row is extracted. Note that in the example shown in FIG. 17A, since no corresponding record exists, it is not actually extracted. Then, by the processing in step S35, for example, a beard unit vector starting from the boundary point T14 is calculated.

  Then, the process proceeds to step S47 by the determination process in step S37. This is because it is determined in step S33 that no other boundary point has been extracted and no other boundary point exists on the extension of the beard. And in the determination process of step S47, since the process is not complete | finished about all the records, it returns to step S31.

  Then, the record of the connection table (FIG. 17A) specified next by the process of step S31 is the record of the eighth row. Then, by the processing in step S33, a record having G as the adjacent lot number in the adjacent lot number column 403 of the record in the eighth row, that is, a record in the eighteenth row is extracted. Furthermore, by the process of step S35, for example, a beard unit vector starting from the boundary point T16 is calculated. In step S37, it is determined whether there is another boundary point on the beard extension. Here, the positional relationship of the boundary points is as shown in the map figure of FIG. 18, and T16 is the starting point. Assume that it is determined that T21 (boundary point associated with the record on the 18th line extracted above) exists on the extension of the beard. Therefore, proceed to the Yes route.

  Then, by the processing in step S39, a beard unit vector starting from, for example, the boundary point T20 is calculated. In step S41, it is determined whether there is another boundary point on the beard extension. Here, the positional relationship of the boundary points is as shown in the map figure of FIG. Assume that it is determined that T19 (boundary point associated with the record on the 18th line extracted above) exists on the extension of the beard. Therefore, proceed to the Yes route.

  Then, by the processing in step S43, a record corresponding to a line segment (boundary line) having T16 and T21 as end points and a record corresponding to a line segment (boundary line) having T20 and T19 as end points are generated. And stored in the connection table of the temporary map DB 1005. The lot number column 900 stores G, which is the adjacent lot number used in step S33. Further, “medium” is registered in the accuracy column 903 of the record stored above by the processing of step S45. And in the determination process of step S47, since the process is not complete | finished about all the records, it returns to step S31.

  In this way, records are added to the connection table of the temporary map DB 1005. In the process using the example shown in FIGS. 17A to 17C and FIG. 18, a record relating to a line segment (boundary line) corresponding to the lot number F and having T20 and T19 as end points, Records relating to line segments (boundary lines) corresponding to the lot number F and having T15 and T18 as end points are generated and stored in the connection table of the temporary map DB 1005. An example of the data in the connection table of the temporary map DB 1005 after the medium accuracy temporary map data generation process is shown in FIG. A record whose value in the accuracy column 903 is “medium” is a record additionally registered by the intermediate accuracy temporary map data generation process. Thereby, for example, for the lot number F and the lot number G, it can be seen that the boundary has been determined.

  As described above, the medium accuracy temporary map data generation processing is performed. Thereby, temporary map data corresponding to a lot number different from a lot number corresponding to a record stored in the connection table of the land survey map DB 1003 is generated. In this embodiment, in order to determine a boundary corresponding to a specific lot number, data is added to the temporary map DB 1005 with two boundary lines as one set. do not have to. For example, new connection data may be generated and stored in the connection table of the temporary map DB 1005 when it is determined in step S37 that another boundary point exists on the extension of the beard. In this case, the record specified in step S31 is a record corresponding to a line segment having at least one of the end points as the start point of the beard, and in some cases (any end point is not the start point of the beard). Case), step S39 and step S41 are skipped.

  The low-accuracy temporary map data generation process (FIG. 12: Step S5) will be described with reference to FIGS. In the following description, the description of the boundary point of a specific lot number or the boundary point included in the specific lot number refers to the boundary point included in the brush of the specific lot number. First, the low-accuracy data generation unit 1015 of the temporary map generation apparatus 1000 reads one record from the writing point table of the geodetic survey map DB 1003 and temporarily stores it in a storage device such as a work memory area (FIG. 20: Step S61). ). Then, the low-accuracy data generation unit 1015 extracts a lot number including a boundary point (hereinafter referred to as t1) corresponding to the record read in step S61 from the connection table of the geodetic survey map DB 1003, and stores the work memory area and the like. Once stored in the storage device (step S63). Further, the low-accuracy data generation unit 1015 extracts a boundary point (hereinafter referred to as t2) that is commonly included in all the lot numbers extracted in step S63 from the connection table of the registry map DB 1001 to obtain a work memory area. Or the like is temporarily stored in the storage device (step S65).

  Then, the low accuracy data generation unit 1015 determines whether one or more boundary points corresponding to t2 exist in step S65 (step S67). If it is determined that it does not exist (step S67: No route), the process proceeds to the process in FIG. On the other hand, when it is determined that there exists (step S67: Yes route), it is determined whether there are a plurality of boundary points corresponding to t2 (step S69). When it is determined that there are a plurality (step S69: Yes route), the low-accuracy data generation unit 1015 sets the corresponding point column 103 in the registry map of the record corresponding to t1 in the writing point table of the temporary map DB 1005. “Unable to discriminate because of multiple candidates” is registered (step S71). Another character string or flag may be used. And it transfers to the process of step S77 mentioned later.

  On the other hand, if it is not determined that there are a plurality (there is one boundary point corresponding to t2) (step S69: No route), the low-accuracy data generation unit 1015 uses the writing point table in the temporary map DB 1005. t2 is registered in the column 103 of the corresponding point in the registry map of the record corresponding to t1 (step S73). Furthermore, the low-accuracy data generation unit 1015 registers “Done” in the flag column 803 in the record corresponding to t2 in the writing point table of the registry map DB 1001 (step S75). Then, the low-accuracy data generation unit 1015 determines whether or not the processing has been completed for all the records in the writing point table of the geodetic survey DB 1003 (step S77). If it is not determined that the processing has been completed for all the records (step S77: No route), the process returns to step S61. On the other hand, when it is determined that the processing has been completed for all records (step S77: Yes route), the processing shifts to the processing in FIG.

  FIG. 21 shows a processing flow after the transition through the terminal A. The low accuracy data generation unit 1015 identifies a lot number (hereinafter referred to as n1) that does not include a boundary point common to other extracted lot numbers from among the lot numbers extracted in step S63 (FIG. 20). Once stored in a storage device such as a memory area (FIG. 21: step S81). Further, the low-accuracy data generation unit 1015 obtains another lot number (hereinafter referred to as n2) having a boundary point that is commonly included in the remaining lot numbers excluding the lot number n1 from the lot numbers extracted in step S63 (FIG. 20). It is specified and temporarily stored in a storage device such as a work memory area (step S83). Then, the low-accuracy data generation unit 1015 searches the connection table of the geodetic survey DB 1003 based on n2 (step S85), and determines whether a record corresponding to n2 exists (step S87). When it is determined that it exists (step S87: Yes route), the process proceeds to step S91 described later. On the other hand, if it is determined that it does not exist (step S87: No route), data related to n2 is registered in the unknown lot number list stored in the unknown lot number list storage unit 1007 (step S89).

  Then, the low-accuracy data generation unit 1015 is the boundary point that is closest to t1 and not registered in the flag column 803 in the record of the writing point table of the registry DB 1001 among the boundary points that n1 has ( (Hereinafter referred to as t3) is specified and temporarily stored in a storage device such as a work memory area (step S91). Then, the low-accuracy data generation unit 1015 registers t3 in the corresponding point column 103 in the registry map of the record corresponding to t1 in the writing point table of the temporary map DB 1005 (step S93). Furthermore, the low accuracy data generation unit 1015 registers “Done” in the flag column 803 of the record corresponding to t3 in the writing point table of the registry map DB 1001 (step S95). And a process transfers to the process of step S77 (FIG. 20) via the terminal C. FIG.

  FIG. 22 shows a processing flow after the transition through the terminal B. The low-accuracy data generation unit 1015 extracts one record registered in the column 103 of the corresponding point in the registry map from the brush point table of the temporary map DB 1005, which is registered as “unable to distinguish because of multiple candidates”. Store once in a storage device such as a memory area (FIG. 22: Step S101). Then, the low-accuracy data generation unit 1015 extracts a lot number (hereinafter referred to as q) including a boundary point (hereinafter referred to as p1) corresponding to the record extracted in step S101 from the connection table of the geodetic survey map DB 1003. Then, it is temporarily stored in a storage device such as a work memory area (step S103).

  Then, the low-accuracy data generation unit 1015 extracts a boundary point other than p1 included in q (hereinafter referred to as p2) from the connection table of the geodetic survey map DB 1003 and temporarily stores it in a storage device such as a work memory area. (Step S105). Furthermore, the low-accuracy data generation unit 1015 specifies the corresponding point p2 ′ in the registry map corresponding to the boundary point p2 in the writing point table of the temporary map DB 1005, and the land survey from the connection table of the registry map DB 1001. Data of the same lot number as the lot number q in the connection table of FIG. DB1003 is read, a boundary point p3 other than p2 ′ is specified in the data, and is temporarily stored in a storage device such as a work memory area (step S107). Then, the low-accuracy data generation unit 1015 registers p3 in the corresponding point column 103 in the registry map of the record corresponding to p1 in the writing point table of the temporary map DB 1005 (step S109).

  Then, the low-accuracy data generation unit 1015 determines whether the processing has been completed for all records to be processed (step S111). If it is not determined that the processing has been completed for all records (step S111: No route), the process returns to step S101. On the other hand, when it is determined that the processing has been completed for all the records (step S111: Yes route), the low accuracy data generation unit 1015 is based on the boundary point data registered in the writing point table of the temporary map DB 1005. Then, the coordinate value of the boundary point registered in the writing point table of the registry map DB 1001 is converted, and a record for the unregistered boundary point is additionally registered in the writing point table of the temporary map DB 1005 (step S113). Specifically, using the technique described in Patent Document 2, boundary point data (correspondence between the boundary point and the corresponding point in the registry map) registered in the writing point table of the temporary map DB 1005 is obtained. As a reference, the coordinate values of boundary points that are registered in the writing point table of the registry map DB 1001 and are not registered in the writing point table of the temporary map DB 1005 are corrected. And the record of the unregistered boundary point is additionally registered in the writing point table of temporary map DB1005 using the corrected coordinate value.

  Further, the low accuracy data generation unit 1015 stores a record that needs to be added to the connection table of the temporary map DB based on the connection table of the registry map DB 1001 and the writing point table of the temporary map DB 1005 (step S115). Specifically, first, a record in the connection table of the registry map DB 1001 is specified. Next, the end point of the boundary line in the specified record is specified. Then, from the brush point table of the temporary map DB 1005, a record in which the value of the column 103 of the corresponding point in the registry map includes the end point of the boundary line specified above is extracted, and the boundary point in the extracted record is determined. Identify. After that, the record corresponding to the boundary line having the specified boundary point as the end point and having the same lot number as the record in the connection table record of the registry map DB 1001 first identified above is connected to the temporary map DB 1005. Check if it is already registered in the table. If it is not registered, a record is added.

  Then, the low accuracy data generation unit 1015 sets “low” in the accuracy column 903 of the record stored in the connection table of the temporary map DB 1005 in step S115 (step S117). Then, the low-accuracy temporary map data generation process ends, and the process returns to the original process.

  Hereinafter, the processing flow (FIGS. 20 to 22) of the low-accuracy temporary map data generation processing described above will be described using a specific example. First, an example of data stored in the connection table of the geodetic survey DB 1003 is shown in FIGS. An example of data stored in the connection table of the registry map DB 1001 is shown in FIG. 24 in addition to FIG. 7 shown above. Note that the data stored in the connection table of the registry map DB 1001 shown in FIG. 24 is generated based on a public map as shown in FIG. Moreover, the example of the map figure showing the actual state is shown in FIG. As described above, the public map has a relatively low accuracy, and may show a state that does not match the actual situation.

  As a first specific example, the data stored in the connection table of the geodetic survey DB 1003 is as shown in FIG. 23A, and the data stored in the connection table of the registry map DB 1001 is as follows. The case where it is as shown in FIG. 7 is demonstrated.

  First, in step S61, one record is read from the writing point table of the land survey map DB1003. Here, for convenience, it is assumed that a record corresponding to the boundary point T12 has been read. And the lot number which has the boundary point T12 is extracted from the connection table of the geodetic survey map DB1003 by the process of step S63. According to the example of FIG. 23A, lot numbers E-2, D, and ZZ having T12 are extracted. And the boundary point common to all the lot numbers E-2, D, and ZZ is extracted in the connection table of the registry map DB 1001 by the process of step S65. Here, since the data as shown in FIG. 7 is stored in the connection table of the registry map DB 1001, a boundary point of point number 12 is extracted.

  Since one boundary point has been extracted, the process proceeds to the Yes route in the determination process in step S67, and proceeds to the No route in the determination process in step S69. And by the process of step S73, “12” is registered in the column 103 of the corresponding point in the registry map of the record corresponding to T12 in the writing point table of the temporary map DB 1005. An example of data stored in the writing point table of the temporary map DB 1005 is shown in FIG. Here, it is shown that “12” is registered in the column 103 of the corresponding point in the registry map of the record in the second row by the process of step S73. Then, “completed” is registered in the flag column 803 in the record corresponding to the point number 12 in the writing point table of the registry map DB 1001 by the processing in step S75. In the determination process in the next step S77, for example, the process proceeds to the No route, and the next record is read.

  As a second specific example, the data stored in the connection table of the geodetic survey map DB 1003 is as shown in FIG. 23B, and the data stored in the connection table of the registry map DB 1001 is as follows. The case where it is as shown in FIG. 24 is demonstrated.

  First, in step S61, one record is read from the writing point table of the land survey map DB1003. Here, for convenience, it is assumed that a record corresponding to the boundary point T5 has been read. And the lot number which has the boundary point T5 is extracted from the connection table of the geodetic survey map DB1003 by the process of step S63. In the example of FIG. 23B, for example, lot numbers B, M, and C having T5 are extracted. And the boundary point common to all the lot numbers B, M, and C is extracted by the process of step S65 in the connection table of the registry map DB 1001. Here, since the data as shown in FIG. 24 is stored in the connection table of the registry map DB 1001, the corresponding boundary points are not extracted.

  Since no boundary point has been extracted, the determination process of step S67 proceeds to the No route, and the process proceeds to the process of step S81 (FIG. 21) via the terminal A. And the lot number C which does not contain the common boundary point with the other extracted lot numbers among the lot numbers B, M, and C extracted in step S63 is specified by the process of step S81. In the example shown in FIG. 24, the boundary points of the lot number C are point numbers 7, 8, 9 and 10, and these boundary points are not included in the lot numbers B and M.

  In the process of step S83, the lot number C identified in step S81 is excluded from the lot numbers B, M, and C extracted in step S63, and the boundary points (point numbers) that are included in the remaining lot numbers B and M are commonly included. When another lot number having 2 and 5) is searched, the lot number B-1 including the point number 5 is specified in the example of FIG.

  Then, it is determined by the process of step S85 and step S87 whether the record corresponding to lot number B-1 is stored in the connection table of the land surveying DB 1003. Here, it is assumed that it does not exist, the process proceeds to the No route, and the data relating to the lot number B-1 is registered in the unknown lot number list by the process of step S89. Next, in the process of step S91, among the boundary points of the point numbers 5, 6, 7, and 8 that are boundary points of the lot number C, in the record of the writing point table in the registry DB 1001 that is closest to the boundary point T5. For example, a boundary point 7 (7 is a point number) is specified as a boundary point that is not registered as “done” in the flag column 803. And by the process of step S93, the point number 7 of the boundary point specified in step S91 is registered in the column 103 of the corresponding point in the registry map of the record corresponding to T5 in the writing point table of the temporary map DB 1005. The An example of data stored in the writing point table of the temporary map DB 1005 is shown in FIG. Here, it is shown that “7” is registered in the column 103 of the corresponding point in the registry map of the record in the first row by the process in step S93. Then, “completed” is registered in the flag column 803 in the record corresponding to the point number 7 in the writing point table of the registry map DB 1001 by the process of step S95. For example, data is stored as shown in FIG. Further, the processing shifts to the processing in step S77 (FIG. 20) via the terminal C. In the determination process of step S77, for example, the process proceeds to the Yes route, and the process proceeds to the process of step S101 (FIG. 22) via the terminal B.

  Here, assuming that the data stored in the writing point table of the temporary map DB 1005 is as shown in FIG. 27, the record in the third row is extracted in the process of step S101. Furthermore, assuming that the data stored in the connection table of the geodetic survey map DB 1003 is as shown in FIG. 29, the process of step S103 includes a point T13 corresponding to the record extracted in step S101. The lot number D is extracted. And by the process of step S105, boundary points T11, T12, and T14 other than T13 that the lot number D has are extracted.

  Further, assuming that the data stored in the connection table of the registry map DB 1001 is as shown in FIG. 30, the registry map DB 1001 corresponding to the lot number D in the land survey map DB 1003 is obtained by the processing of step S107. Boundary point 11, 12, and 14 in registry map DB 1001 corresponding to boundary points T11, T12, and T14 in land survey map DB 1003 (corresponding relationship is a brush of temporary map DB 1005 as shown in FIG. 28, for example). The boundary points 30, 31 and 32 other than those specified from the boundary point table are extracted. Then, by the processing in step S109, the point numbers 30, 31, and 32 are registered in the corresponding point column 103 in the registry map in the record corresponding to T13 in the writing point table of the temporary map DB 1005. In the example of FIG. 28, “30, 31, 32” is registered in the column 103 of the corresponding point in the registry map of the record in the seventh row.

  FIG. 31 shows a conceptual diagram of boundary point association. FIG. 31 shows a brush figure 3100 of lot number D as a basis of data stored in the registry map DB 1001 and a brush figure 3101 of lot number D formed based on the data stored in the geodetic survey map DB 1003. Has been. An arrow indicates that the boundary points 30, 31, and 32 included in the brush graphic 3100 are associated with the boundary point T <b> 13 included in the brush graphic 3101. In this way, points that are a plurality of boundary points in a public map with relatively low accuracy may be aggregated into one point based on data stored in the geodetic survey map DB 1003.

  In the determination process in step S111, for example, the process proceeds to a Yes route. And the process of step S113 converts the coordinate value of the boundary point corresponding to the record in the writing point table of the registry map DB 1001 that is not associated with any record in the writing point table of the temporary map DB 1005. , Additionally registered in the brush point table of the temporary map DB 1005. At that time, the coordinate value conversion processing is performed based on the association data (value stored in the column 103 of the corresponding point in the registry map) in the writing point table of the temporary map DB 1005. More specifically, this conversion processing is performed by coordinating the map data of the lot number display including boundary information of the lot number display indicating the boundary of the region corresponding to the lot number based on the coordinate system, and the boundary of the region corresponding to the residence display An acquisition step of acquiring residential display map data including boundary information of the residential display based on the system, a pair of reference points on the surface shown on one of the two map data, and the other of the two map data Reference point identification procedure for identifying a pair of reference points corresponding to both reference points on the surface, the coordinate values of both reference points by the coordinate system of the map data of the lot number display, and the coordinate system of the map data of the house display A conversion step for converting the other coordinate system in accordance with one coordinate system of both map data by analyzing the conversion relationship between the two coordinate systems based on the coordinate values of both reference points by Indicated in one of the data Auxiliary reference point identifying step for identifying a plurality of auxiliary reference points other than the above two reference points, and a plurality of auxiliary reference points respectively corresponding to each auxiliary reference point on the other surface of both map data, and both maps The auxiliary reference point in the other map data corresponding to the auxiliary reference point is brought close to the auxiliary reference point in one of the data, and the distance between a predetermined boundary point set in the other map data and each auxiliary reference point A deformation step of deforming the other map data so that the rate of change due to deformation increases as the distance between the boundary point and the auxiliary reference point decreases. Also, coordinate values may be converted for all points associated with the writing point table in the registry map DB 1001 and additional boundary points not registered in the writing point table in the temporary map DB 1005 may be additionally registered. Good.

  Then, records are additionally registered in the connection table of the temporary map DB 1005 by the processing of step S115 and step S117. For example, the data stored in the connection table of the registry map DB 1001 is as shown in FIG. 32, and the data stored in the writing point table of the temporary map DB 1005 is as shown in FIG. In addition, a process when the data stored in the connection table of the temporary map DB 1005 is as shown in FIG. 33 will be described. First, the first line in the example of FIG. 32 is extracted. This record shows the boundary line corresponding to the lot number C with the boundary points 7 and 8 as end points. Therefore, the boundary points in the writing point table of the temporary map DB 1005 corresponding to the boundary points 7 and 8 are specified. In the example of FIG. 28, it can be identified from the record in the first row that the boundary point T5 corresponds to the boundary point 7. Similarly, it can be identified from the record in the second row that the boundary point T6 corresponds to the boundary point 8. Based on these correspondences, it is confirmed whether or not a record relating to the boundary line corresponding to the lot number C is stored in the connection table of the temporary map DB 1005 with the boundary points T5 and T6 as end points. In the example of FIG. 33, since the corresponding record exists in the second line, the record is not additionally registered or updated.

  Next, the second line in the example of FIG. 32 is extracted. This record shows the boundary line corresponding to the lot number C with the boundary points 8 and 10 as end points. Therefore, the boundary points in the writing point table of the temporary map DB 1005 corresponding to the boundary points 8 and 10 are specified. In the example of FIG. 28, it can be identified from the record in the second row that the boundary point T6 corresponds to the boundary point 8. Similarly, from the record in the fourth row, it can be specified that the boundary point 10 corresponds to the boundary point 10. Based on these correspondences, it is confirmed whether or not a record relating to the boundary line corresponding to the lot number C is stored in the connection table of the temporary map DB 1005 with the boundary points T6 and T10 as end points. In the example of FIG. 33, since there is no corresponding record, the record is additionally registered. In this way, processing is performed by extracting records in the connection table of the registry map DB 1001 one by one. Then, “low” is set in the accuracy column 903 of the additionally registered record.

  FIG. 34 shows an example of the connection table data in the temporary map DB 1005 after the low-accuracy temporary map data generation processing. A record whose value in the accuracy column 903 is “low” is a record additionally registered by the low accuracy temporary map data generation processing. As a result, for example, for lot number C and lot number D, it can be seen that the boundary has been determined.

  As described above, the low-accuracy temporary map data generation process is performed. Thereby, temporary map data corresponding to the lot number that cannot be specified using only the data stored in the land survey map DB 1003 is generated.

  The temporary map output process (FIG. 12: Step S7) will be described with reference to FIG. In the following description, the description that the temporary map output unit 1017 of the temporary map generation device 1000 outputs specific data actually indicates that the specific data is displayed on the display device or the output device 1009 It means that specific data is transmitted and output.

  First, the temporary map output unit 1017 of the temporary map generation apparatus 1000 reads one record from the connection table of the temporary map DB 1005 and temporarily stores it in a storage device such as a work memory area (FIG. 35: step S131). Then, the temporary map output unit 1017 extracts the boundary point coordinate values included in the record read in step S131 from the writing point table of the temporary map DB 1005 and temporarily stores it in a storage device such as a work memory area ( Step S133). Then, the temporary map output unit 1017 determines whether the value in the accuracy column 903 of the record read in step S131 is “high” (step S135). When it is determined that it is not “high” (step S135: No route), the process proceeds to step S139 described later. On the other hand, if it is determined that it is “high” (step S135: Yes route), the temporary map output unit 1017 indicates a line connecting the boundary points with a bold line based on the coordinate values of the boundary points extracted in step S133. Is output (step S137). That is, data that can be identified as a boundary line with high accuracy is generated.

  Then, the temporary map output unit 1017 determines whether the value in the accuracy column 903 of the record read in step S131 is “medium” (step S139). When it is determined that it is “medium” (step S139: Yes route), the temporary map output unit 1017 is data for indicating a line connecting the boundary points with a thin line based on the coordinate values of the boundary points extracted in step S133. Is output (step S141). That is, data that can specify that the accuracy is a boundary line is generated. And it transfers to the process of step S145 mentioned later. On the other hand, when it is determined that it is not “medium” (step S139: No route), the temporary map output unit 1017 indicates the line connecting the boundary points with a dotted line based on the coordinate values of the boundary points extracted in step S133. Is output (step S143). That is, data that can be identified as a boundary line with low accuracy is generated.

  And the temporary map output part 1017 determines whether the process about all the records in the connection table of temporary map DB1005 was complete | finished (step S145). If it is not determined that the processing for all records has been completed (step S145: No route), the process returns to step S131. On the other hand, when it is determined that the processing for all the records has been completed (step S145: Yes route), the temporary map output unit 1017 outputs the lot number, boundary point number, and legend data (step S147). Further, the temporary map output unit 1017 outputs data of the unknown lot number list stored in the unknown lot number list storage unit 1007 (step S149). In this way, the temporary map output process is performed. Then, the process returns to the original process.

  As described above, the processing by the temporary map generation apparatus 1000 is performed. FIG. 36 shows an example of the temporary map output result. 36 includes a temporary map display section 2500, an unknown lot number list display section 2501, and a legend display section 2502. In the temporary map display unit 2500, the boundary line is indicated by one of a thick line, a thin line, and a dotted line depending on the accuracy. The user who sees the temporary map output in this way can intuitively understand which part of the map needs to be surveyed in order to create the 17-article map.

  Although one embodiment of the present invention has been described above, the present invention is not limited to this. For example, the table configuration and the list configuration shown in FIGS. 4 to 11 are examples, and other configurations may be adopted as long as similar data is stored, and items may be changed as necessary. You may add or delete. Further, the functional block configuration of the temporary map generation apparatus 1000 shown in FIG. 1 is an example, and may differ from the actual program module configuration. Moreover, the temporary map generation apparatus 1000 may be configured by a plurality of servers and computers. The functional block diagram of the computer shown in FIG. 2 is also an example, and may be different from the actual hardware configuration. Moreover, the map figures shown in FIGS. 3, 18, 25, 26 and 36 are also examples, and are not limited to the shapes shown in the figures. The processing flows shown in FIGS. 12, 16, 20 to 22, and 35 are also examples, and the processing order may be changed within a range in which similar processing results can be obtained. Steps may be added or deleted.

(Appendix 1)
For each of some of the lot numbers included in the predetermined area, a geodetic survey map data storage unit in which the geodetic survey map data including data related to the boundary and the adjacent relationship is stored;
Using the land survey data stored in the land survey data storage unit, temporary map data including boundary and adjacency data for a land number different from the land number corresponding to the land survey data is generated. Temporary map data generating means for storing in the temporary map data storage unit;
A temporary map data generation device having

(Appendix 2)
The temporary map data generating means
Temporary map data including data on boundaries and adjacency relations for lot numbers corresponding to the geodetic survey map data is generated using the geodetic survey map data stored in the geodetic survey map data storage unit, and temporary map data Means for storing in the storage unit;
Using the temporary map data stored in the temporary map data storage unit, generate a temporary map for the predetermined area that can identify a lot number corresponding to the land survey data or a boundary line related to the lot number. The temporary map data generation device according to appendix 1, further comprising:

(Appendix 3)
A map data storage unit in which map data having a lower accuracy than the land survey data is stored;
The temporary map data generating means
Among the lot numbers different from the lot numbers corresponding to the geodetic survey map data, using the temporary map data stored in the temporary map data storage unit and the public map data stored in the public map data storage unit The temporary map data generation device according to supplementary note 1, further comprising means for generating data relating to the boundary and adjacency relation for a lot number other than the lot number capable of generating data relating to the boundary and adjacency relation based on the land survey data.

(Appendix 4)
The area survey map data includes boundary line data in which boundary points that are points on both ends of a line segment that constitutes a boundary line are associated with adjacent lot numbers that are adjacent to the boundary line, and each boundary point Boundary point data in which coordinate values are associated with and a directional line that is regarded as a part of a boundary line of an adjacent region that is not represented only by the boundary line specified by the boundary line data and that starts from the boundary point Minute data and
The temporary map data generating means
A second boundary associated with the same adjacent lot number as the adjacent lot number associated with the first boundary line including the boundary point registered as the start point of the directed line segment data based on the land survey data Means for extracting lines;
Using the boundary point data and the directed line segment data, the second boundary line is set within a predetermined range from the extension line of the directed line segment starting from the boundary point included in the first boundary line. A determination means for determining whether the associated boundary point exists;
If it is determined by the determination means that there is a boundary point associated with the second boundary line within a predetermined range from the extension line of the directed line segment, the boundary point that is the starting point of the directed line segment And means for generating boundary line data that is associated with the second boundary line and whose boundary point is determined to be within a predetermined range from the extension line of the directed line segment;
Means for generating temporary map data based on the generated boundary line data and storing the temporary map data in the temporary map data storage unit;
The provisional map data generation device according to supplementary note 1 having:

(Appendix 5)
The determination means is
Means for generating a unit vector corresponding to the directed line segment data;
Means for determining whether a boundary point associated with the second boundary line exists within a predetermined range at a position obtained by multiplying the unit vector by a predetermined number;
The provisional map data generation device according to appendix 4, wherein

(Appendix 6)
The temporary map data generating means
Temporary map data including data on boundaries and adjacency relations for lot numbers corresponding to the geodetic survey map data is generated using the geodetic survey map data stored in the geodetic survey map data storage unit, and temporary map data Means for storing in the storage unit;
The temporary map data includes accuracy data according to a method for generating temporary map data,
Using the temporary map data stored in the temporary map data storage unit, generate and output a temporary map for the predetermined area that can specify the accuracy corresponding to the accuracy data included in the temporary map data. The temporary map data generation device according to supplementary note 3, further comprising: means.

(Appendix 7)
The area survey map data includes boundary line data including data of boundary points that are points at both ends of a line segment constituting the boundary line, and boundary point data in which coordinate values are associated with each boundary point. ,
A map data storage unit in which map data having a lower accuracy than the land survey data is stored;
The temporary map data generating means
Means for associating a boundary point included in the geodetic survey map data with a boundary point included in the public map data, and storing it in an association data storage unit;
Using the data stored in the public map data storage unit, the data stored in the association data storage unit, and the boundary point data included in the land survey data, the boundary points included in the public map data Means for correcting the position data of the unregistered boundary point in the association data storage unit among the boundary points included in the public map data in the association data storage unit;
Means for identifying a boundary point in the geodetic survey map data corresponding to both end points of the boundary line stored in the public map data storage unit with reference to the association data storage unit;
Means for determining whether a boundary line constituted by the identified boundary point is stored in the temporary map data storage unit;
When the boundary line constituted by the specified boundary point is not stored in the temporary map data storage unit, the data on the boundary line constituted by the specified boundary point is used as temporary map data. Means for storing in the map data storage unit;
The provisional map data generation device according to appendix 1, including:

(Appendix 8)
Means for extracting a lot number corresponding to a region including a first boundary point included in the land survey data from the land survey data;
Means for referring to the public map data storage unit to determine whether there is a common boundary point in the region corresponding to the extracted lot number;
If there is no common boundary point in the region corresponding to the extracted lot number, the second corresponding to another region including the boundary point common to some of the regions corresponding to the extracted lot number A means of identifying the lot number,
Means for determining whether the second lot number is included in the land survey data;
If it is determined that the second lot number is not included in the geodetic survey map data, means for storing the second lot number as an unknown lot number in an unknown lot number data storage unit;
The temporary map data generation device according to claim 7, further comprising:

(Appendix 9)
A step of reading the geodetic survey map data from the geodetic survey map data storage unit in which the geodetic survey map data including the data relating to the boundary and the adjacency relation is stored for each of a part of the lot numbers included in the predetermined area; ,
Temporary map data including data on boundaries and adjacency relations for lot numbers different from the lot numbers corresponding to the land area survey map data is generated using the read ground area survey map data and stored in the temporary map data storage unit. A map data generation step;
A temporary map data generation method executed by a computer.

(Appendix 10)
The temporary map data generation step includes:
Temporary map data including data on boundaries and adjacency relations for lot numbers corresponding to the geodetic survey map data is generated using the geodetic survey map data stored in the geodetic survey map data storage unit, and temporary map data Including a step of storing in the storage unit,
Using the temporary map data stored in the temporary map data storage unit, generate a temporary map for the predetermined area that can identify a lot number corresponding to the land survey data or a boundary line related to the lot number. The temporary map data generation method according to appendix 9, further comprising:

(Appendix 11)
A program for causing a computer to execute the temporary map data generation method according to attachment 9 or 10.

1 is a system configuration diagram according to an embodiment of the present invention. It is a figure which shows the outline | summary of the functional block of the computer in embodiment of this invention. It is a figure which shows an example of a land area survey map. It is a figure which shows the example of the table structure of the connection table of a land survey map DB, and the 1st example of the data stored. It is a figure which shows the example of the table structure of the writing point table of a land surveying DB, and the 1st example of the data stored. It is a figure which shows the example of the table structure of the mustache figure table of a land surveying DB, and the 1st example of the data stored. It is a figure which shows the example of the table structure of the connection table of registry map DB, and the 1st example of the data stored. It is a figure which shows the example of the table structure of the writing point table of registry office map DB, and the 1st example of the data stored. It is a figure which shows the example of the table structure of the connection table of temporary map DB, and the 1st example of the data stored. It is a figure which shows the example of the table structure of the writing point table of temporary map DB, and the 1st example of the data stored. It is a figure which shows an example of a structure of an unknown lot number list, and list data. It is a figure which shows the main process flow in this Embodiment. It is a figure which shows the processing flow of a highly accurate temporary map data generation process. It is a figure which shows the 2nd example of the data stored in the connection table of land surveying DB. It is a figure which shows the 2nd example of the data stored in the brushstroke point table of a land surveying DB. It is a figure which shows the processing flow of a medium accuracy temporary map data generation process. The figure which shows the 3rd example of the data stored in a connection table, the 3rd example of the data stored in a brushstroke point table, and the 2nd example of the data stored in a mustache figure table in a land survey DB It is. It is a figure which shows the example of the map figure based on a land surveying DB. It is a figure which shows the 2nd example of the data stored in the connection table of temporary map DB. It is a figure which shows the 1st process flow of a low-accuracy temporary map data generation process. It is a figure which shows the 2nd processing flow of low-accuracy temporary map data generation processing. It is a figure which shows the 3rd processing flow of low-accuracy temporary map data generation processing. It is a figure which shows the 4th example and the 5th example of the data stored in the connection table of a land surveying DB. It is a figure which shows the 2nd example of the data stored in the connection table of registry office map DB. It is a figure which shows the example of the map figure based on the registry map DB. It is a figure which shows the example of the map figure showing the actual state. It is a figure which shows the 2nd example of the data stored in the writing point table of temporary map DB. It is a figure which shows the 3rd example of the data stored in the brush boundary point table of temporary map DB. It is a figure which shows the 6th example of the data stored in the connection table of land surveying DB. It is a figure which shows the 3rd example of the data stored in the connection table of registry office map DB. It is a conceptual diagram of boundary point matching. It is a figure which shows the 4th example of the data stored in the connection table of registry office map DB. It is a figure which shows the 3rd example of the data stored in the connection table of temporary map DB. It is a figure which shows the 4th example of the data stored in the connection table of temporary map DB. It is a figure which shows the processing flow of a temporary map output process. It is a figure which shows an example of a temporary map output result.

Explanation of symbols

1000 Temporary map generator 1001 Registry map DB
1003 Land survey map DB 1005 Temporary map DB
1007 Unknown lot number list storage unit 1009 Output device 1011 High accuracy data generation unit 1013 Medium accuracy data generation unit 1015 Low accuracy data generation unit 1017 Temporary map output unit

Claims (5)

For each of some of the lot numbers included in the predetermined area, a geodetic survey map data storage unit in which the geodetic survey map data including data related to the boundary and the adjacent relationship is stored;
Using the geodetic survey map data stored in the geodetic survey map data storage unit, generate temporary map data including data on boundaries and adjacency relationships for lot numbers different from the lot numbers corresponding to the geodetic survey map data Temporary map data generating means for storing in the temporary map data storage unit;
A temporary map data generation device having The temporary map data generating means
Temporary map data including data on boundaries and adjacency relations for lot numbers corresponding to the geodetic survey map data is generated using the geodetic survey map data stored in the geodetic survey map data storage unit, and temporary map data Means for storing in the storage unit;
Using the temporary map data stored in the temporary map data storage unit, generate a temporary map for the predetermined area that can identify a lot number corresponding to the land survey data or a boundary line related to the lot number. The temporary map data generation device according to appendix 1, further comprising: A map data storage unit in which map data having a lower accuracy than the land survey data is stored;
The temporary map data generating means
Among the lot numbers different from the lot numbers corresponding to the geodetic survey map data, using the temporary map data stored in the temporary map data storage unit and the public map data stored in the public map data storage unit The temporary map data generation device according to supplementary note 1, further comprising means for generating data relating to the boundary and adjacency relation for a lot number other than the lot number capable of generating data relating to the boundary and adjacency relation based on the land survey data. A step of reading the geodetic survey map data from the geodetic survey map data storage unit in which the geodetic survey map data including the data relating to the boundary and the adjacency relation is stored for each of a part of the lot numbers included in the predetermined area; ,
Temporary map data including data on boundaries and adjacency relations for lot numbers different from the lot numbers corresponding to the land area survey map data is generated using the read ground area survey map data and stored in the temporary map data storage unit. A map data generation step;
A temporary map data generation method executed by a computer. The temporary map data generation step includes:
Temporary map data including data on boundaries and adjacency relations for lot numbers corresponding to the geodetic survey map data is generated using the geodetic survey map data stored in the geodetic survey map data storage unit, and temporary map data Including a step of storing in the storage unit,
Using the temporary map data stored in the temporary map data storage unit, generate a temporary map for the predetermined area that can identify a lot number corresponding to the land survey data or a boundary line related to the lot number. The temporary map data generation method according to appendix 9, further comprising:

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