JP2006053179A - Device and method for processing geographic information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device and a method for processing geographic information enabling a user to exactly combine and use map data and geographic information content registered in a geographic information database and different in specifications or the like without increasing workload of a geographic information system. <P>SOLUTION: In a geographic information processing device system 11, map data are registered in the geographic information database 102, from terminals 106-108 via a network 109. When the user registers the map data from the terminal 106, the user sends map information as information related to the map data to be registered in a geographic information registration section 103 from the terminal 106 to the geographic information system 101, and the geographic information registration section 103 controls a reference point data distributing section 104, retrieves reference point data from a reference point database 105, and distributes the reference point data to the terminal 106. At the terminal 106, the user corrects positional deviation in the map data based on the distributed reference point data. The corrected map data are sent to the geographic information registration section 103 to be registered in the geographic information database 102. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a geographic information processing apparatus and method, and more particularly to geographic information that shares different map data and geographic information content in a geographic information system that shares and uses map data and geographic information content among a plurality of departments. The present invention relates to a processing apparatus and method.

  In a geographic information system (GIS), since the amount of information is enormous, a great deal of cost is required to create map data and geographic information content.

  For this reason, in an organization such as a corporate entity having a geographic information system, the total cost of the entire organization is reduced by sharing the map data and geographic information content created by a certain department with other departments. be able to.

  Therefore, map data and geographic information content that each department has independently prepared should be registered in a common geographic information database, and other departments should acquire and use the necessary map data and geographic information content from the geographic information database. Is done.

  In this case, a plurality of types of map data and geographic information contents having different specifications registered in the geographic information database are used in combination with each other. For example, a road map created by a road management department and a water pipe drawing created by a water management department are used in combination for planning water pipe construction. By using such a method, it is possible to create a plan as to which section of which road is to be constructed in order to bury a new water pipe.

  By the way, the map data and geographical information contents prepared independently by each department are generally created by different surveying companies and data input companies at different times. Also, if the scale is partially different, or if the purpose of use is different even at the same scale, the allowable accuracy in surveying and data creation is different.

  For this reason, even if it is the same region, if you try to use a combination of map data and geographical information content that have different road conditions, etc., the map information will be misaligned and accurate map information will not be obtained. It becomes.

  In the prior art, when different map data as described above are used in combination, the user manually deforms the map data or the geographic information content to correct the mutual positional deviation. However, this method places a heavy work burden on the user.

  Therefore, in the technique described in Patent Document 1, in order to solve the above problem, the map data has the coordinates of the feature points of the structure in the map data, and when the different map data is displayed in a superimposed manner, Geometric transformation is applied so that the points coincide with each other, and mutual positional deviation is corrected.

JP 2003-281154 A

  However, in the method described in Patent Document 1, a common feature point must be searched for and registered in advance in all map data that may be displayed in a superimposed manner, and the work burden on the user is large. Further, when map data is newly added, feature points common to other already registered map data are not always included.

  Furthermore, in the method described in Patent Document 1, the four corners and grid points of the map map are provided as common feature points. However, if there are errors in the coordinate values of the four corners of the map and the grid points due to differences in the scale of the map that is going to be displayed and differences in the allowable accuracy during surveying, they do not overlap correctly, Not only is the work burden high, but accurate map information cannot be obtained.

  An object of the present invention is to provide geographical information capable of accurately combining and using map data and geographical information contents with different specifications registered in the geographical information database without increasing the work load of the geographical information system. It is to implement a processing apparatus and method.

In order to achieve the above object, the present invention is configured as follows.
(1) In a geographic information processing apparatus, for correcting geographic location information for geographic information registration means for receiving geographic information from a geographic information provider's terminal and storing it in a database, and for the geographic information provider's terminal. Reference point data distribution means for providing the reference point information, and means for registering, in the database, geographical information whose position information has been corrected based on the reference point by the terminal of the geographical information provider.

  (2) Reference point data storage means for storing reference point information for correcting geolocation information, provision account means for storing a grantee for permitting provision of the reference point information, and the above from the outside When there is a reference point information provision request, it is determined whether or not the provision requester is stored in the provision account means, and if it is stored, the reference point information requested for provision is determined as the reference point information. Reference point data providing means for reading from the point data storage means and providing the read reference point information to the information processing apparatus of the provision requester.

  (3) In the geographical information processing method, reference point information for receiving geographical information from a geographical information provider's terminal, storing it in a database, and correcting the geographical position information for the geographical information provider's terminal. And the geographic information whose position information is corrected based on the reference point by the terminal of the geographic information provider is registered in the database.

  (4) Preferably, in the above (1), (2), and (3), the reference point information is map data or latitude / longitude frequency.

  When registering newly registered map data or geographic information content, reference point data is received from the geographic information database, and after the positional deviation of the information of the newly registered map data or geographic information content is corrected, Register.

  Specifically, the reference point data registered in advance in the geographic information database is distributed to the terminal of the user who is newly registering the map data or the geographic information content, and the new map data or the new geographic information content is distributed. By registering them in the geographic information database after correcting the positional deviation in association with each other, different map data and geographic information contents can be easily combined and used.

  According to the present invention, geographic data that can be used in combination with accurate mapping data and geographic information content registered in the geographic information database without increasing the work load of the geographic information system. A processing apparatus and method can be realized.

  Further, it is possible to correct misalignment without registering the coordinates of feature points common to all map data at the time of map data registration.

  Further, it is possible to correct misalignment even if there is a difference in scale, or a difference in tolerance accuracy when surveying or creating map data.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a schematic configuration diagram of a geographic information processing apparatus system according to an embodiment of the present invention.

  In FIG. 1, a geographic information system 101 as a server registers map data from the terminal devices 106 to 108 connected to the network 109 in the geographic information database 102.

  When the user registers the map data from the terminal (A) 106, first, as the information related to the map data registered in the geographic information registration unit 103, the map information including the range of the map data is stored from the terminal (A) 106. Send to the information system 101.

  The geographic information registration unit 103 controls the reference point data distribution unit 104 based on the range of the map data, searches the reference point database 105 for the reference point data included in the range, and distributes it to the terminal (A) 106. To do.

  At the terminal (A) 106, the user corrects the positional deviation of the map data to be registered based on the distributed reference point data. The corrected map data is sent to the geographic information registration unit 103 and registered in the geographic information database 102.

  When other users register map data in the geographic information database 102 from terminals (B) 107 and 108 other than the terminal (A) 106, the reference points are similarly retrieved from the reference point database 105 of the geographic information system 101. The positional deviation of the map data is corrected by the reference point data distributed via the data distribution unit 104. Then, map data is registered in the geographic information database 102.

  Thereby, even when the map data registered from the terminal (A) 106 and the map data registered from the terminal (B) 107 or the like are used in combination, the positional deviation between the map data does not occur.

  Further, it is possible to correct misalignment without registering the coordinates of feature points common to all map data at the time of map data registration.

  Further, it is possible to correct misalignment even if there is a difference in scale, or a difference in tolerance accuracy when surveying or creating map data.

  FIG. 2 is registered from the terminal (A) 106 using the reference point data retrieved from the reference point database 105 and distributed from the reference point data distribution unit 104 to the terminal (A) 106 and the like via the network 109. It is a figure which shows an example of the method of correct | amending the positional offset of map data.

  As an example of the reference point data registered in the reference point database 105, data obtained by cutting out map data near the reference point is used. In the illustrated example, the map data to be registered is displayed in the main window 201 of the display of the terminal (A) 106, the reference point data distributed from the reference point distribution unit 104 is displayed in the small window 202, and both are visually compared. The corresponding points 203 and 204 are selected.

  Based on the correspondence between the map data to be registered and the reference point, the positional deviation of the map data is corrected and registered in the geographic information database 102. Corresponding point selection between the map data to be registered and the reference point may be performed by automatic processing by geometric figure matching.

  In addition, even if the corresponding reference points have the same visual position, but the latitude and longitude information is different, the map information can be made more correct by correcting it on the user side. It is possible to update to accurate information while reducing the burden on the information system 101 side.

  FIG. 3 is a diagram for explaining an example of providing reference point data as a service in the present invention.

  In FIG. 3, the reference point data providing service server 301 includes a reference point data providing unit 302, a reference point database 303, and a provided account management unit 304. The provision account management unit 304 stores a provision authorized person who permits provision of correction reference point information of geographic information in advance.

  The reference point data providing service server 301 is owned by a service provider that specializes in collection, maintenance, and management of reference point data. In the geographic information system 101, when it is necessary to distribute the reference point data, the geographic information system 101 makes a service request to the reference point data providing unit 302 of the reference point data providing service server 301.

  The reference point data providing unit 302 for which the service request has been made searches the provided account management unit 304 to confirm whether or not the geographic information system 101 (providing requester) is eligible to receive the reference point providing service.

  If the geographic information system 101 is qualified to receive the reference point providing service, the reference point database 303 is searched to select a reference point that satisfies the service request and provided to the reference point data distribution unit 104. The provided account management unit 304 charges the owner of the geographic information system 101 according to the type and number of reference point data to be provided.

It is a schematic block diagram of the geographic information processing apparatus system which is one Embodiment of this invention. It is a figure which shows the example of a screen display in one Embodiment of this invention. It is a figure explaining an example which performs provision of reference point data as a service.

Explanation of symbols

101 Geographic Information System 102 Geographic Information Database 103 Geographic Information Registration Unit 104 Reference Point Data Distribution Unit 105, 303 Reference Point Database 106-108 Terminal Device 109 Network 201 Terminal Main Window 202 Terminal Reference Point Display Small Window 203, 204 Point selection position (reference point)
301 Reference Point Data Providing Service Server 302 Reference Point Data Providing Unit 304 Provided Account Management Unit

Claims (5)

Geographic information registration means for receiving geographic information from a geographic information provider's terminal and storing it in a database;
Reference point data distribution means for providing reference point information for correcting geographical position information to the terminal of the geographic information provider,
Means for registering in the database geographical information whose position information has been corrected by the terminal of the geographical information provider based on the reference point;
A geographic information processing apparatus comprising: Reference point data storage means for storing reference point information for correcting geolocation information;
A providing account means for storing a granting person who is allowed to provide the reference point information;
When an information provision request for the reference point is received from the outside, it is determined whether the provision requester is stored in the provision account means, and if it is stored, the reference point information requested for provision is stored. , Reference point data providing means for reading from the reference point data storage means and providing the read request point information to the information processing apparatus of the provision requester;
A geographic information processing apparatus comprising:   3. The geographical information processing apparatus according to claim 1, wherein the reference point information is map data or latitude / longitude frequency. Receive geographical information from the terminal of the geographical information provider and store it in the database.
Provide the reference point information for correcting the geographical position information to the terminal of the geographical information provider,
A geographical information processing method comprising: registering, in the database, geographical information whose position information has been corrected based on the reference point by a terminal of the geographical information provider.   5. The geographical information processing method according to claim 4, wherein the reference point information is map data or latitude / longitude frequency.

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