Management method, management device, management system, and program

Abstract

To obtain a more convenient method for managing information about transportation facilities on a GIS.SOLUTION: This management method is for managing offset information about the location of a transportation facility on a geographic information system. The offset information includes first graphic information including a first facility point in the transportation facility, a first terrain point located in the vicinity of the first facility point in map data, and a first line drawing connecting the first facility point and the first terrain point, and first graphic attribute information associated with the first line drawing and including information on the distance actually measured between the first facility point and the first terrain point.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a method for managing offset information. [Background technology]

[0002] In general, water transport facilities (pipes, waterways, auxiliary facilities, etc.) are buried underground at the time of completion of construction work such as installation, inspection, repair, etc. It is not easy to accurately identify (confirm) the location of water transport facilities such as pipelines buried underground from above ground without conducting excavation, etc.

[0003] Conventionally, contractors of construction works related to water transport facilities prepare completion drawings (completion drawings) in conjunction with the completion of construction works and submit them to construction managers of local governments, etc. The layout of the water transport facilities (e.g., the location of the pipelines) is shown in line diagrams in the plan drawings (completion plan drawings) of the completion drawings, but the information obtained from the line diagrams is insufficient to accurately identify the location of the water transport facilities.

[0004] In order to avoid any hindrance to the long-term maintenance of water transport facilities, construction contractors are also required to prepare offset drawings as part of the completion drawings. An offset drawing is a drawing in which a characteristic point of a water transport facility is used as a measurement point, and the distance (horizontal distance) between the measurement point and a base point such as a road boundary post is measured (offset survey), and offset information including the measurement point, base point, and measured distance is written on the completion plan. By using an offset drawing, the location of the water transport facility can be made clearer.

[0005] In Patent Document 1, in consideration of the problem that there are actually many different types of underground buried objects and that different types are managed by different managers, a technology is described that uses road information, manhole information, and buried object information to unify location criteria and estimate the positional relationships between buried objects. [Prior art documents] [Patent documents]

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] Information on water transportation facilities may be managed using a Geographic Information System (GIS). In this case, information for visualizing the layout of water transportation facilities is registered in the GIS data. Also, offset diagrams may be registered in the GIS data as referenceable information. The map data and offset diagrams registered in the GIS data may be updated individually, and for offset diagrams created in the past, it takes a great deal of effort to update (correct) the offset diagrams in response to updates to the map data.

[0008] There is a need for a more convenient management method for managing information on transportation facilities on a GIS.

Means for Solving the Problems

[0009] To solve the above problems, a management method according to one aspect of the present invention is a management method for managing offset information regarding the location of transportation facilities buried underground on a geographic information system, wherein the offset information includes: (i) a first facility point corresponding to a characteristic part of the transportation facility; (ii) a first topographic point corresponding to a characteristic location in the map data in the geographic information system that is used to specify the location of the first facility point and is located in the vicinity of the first facility point; and (iii) a first graphic information including a first graphic shape connecting the first facility point and the first topographic point, and a first graphic attribute information associated with the first graphic shape and including information on the actually measured distance between the first facility point and the first topographic point.

[0010] Also, a management device according to an aspect of the present invention is a management device that manages offset information regarding the location of a transportation facility buried underground on a geographic information system, where the offset information includes: (i) location information of a first facility point corresponding to a characteristic part of the transportation facility; (ii) location information of a first terrain point corresponding to a characteristic location in the map data in the geographic information system that is used to identify the location of the first facility point and is located in the vicinity of the first facility point; and (iii) a first graphic information including a first graphic shape connecting the first facility point and the first terrain point. The offset information further includes first graphic attribute information associated with the first graphic shape and including information on the actually measured distance between the first facility point and the first terrain point. The management device includes a reception unit that receives registration of the offset information to the geographic information system, and a data creation unit that creates display data for displaying the offset information on the geographic information system.

Advantages of the Invention

[0011] According to an aspect of the present invention, the convenience in managing information regarding a transportation facility on a geographic information system can be improved.

Brief Description of the Drawings

[0012]

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Mode for Carrying Out the Invention

[0013] 〔Embodiment 1〕 Hereinafter, an embodiment of the present invention will be described in detail. However, the following description is for better understanding of the gist of the invention and does not limit the present invention unless otherwise specified.

[0014] In this embodiment, as an example of a transportation facility buried underground, a water transportation facility is targeted. The transportation facility buried underground is not limited to a water transportation facility, and may be, for example, a gas transportation facility. The management method of this embodiment described below can be applied to manage information on other types of transportation facilities on a geographic information system (hereinafter referred to as GIS).

[0015] In the management method according to this embodiment, on GIS, offset information regarding a water transportation facility is handled (managed) as data including graphic information including line graphics and attribute information associated with the line graphics. Thereby, a more convenient management method can be provided for a method of managing information regarding a water transportation facility on GIS. And a management system for implementing the management method can be realized. "Managing data on GIS" is related to the display mode of data in an image (GIS display image) visually displayed by a computer regarding a management service using GIS when an application (software) of GIS is executed using a computer.

[0016] Hereinafter, first, for the sake of facilitating the understanding of the present invention, an outline of a management system 1 as an example of a system for implementing the management method of this embodiment will be described while comparing it with the prior art. Thereafter, details of each part of the management system 1 and the management server (management device) 10 and the flow of the management method implemented by the management system 1 will be described.

[0017] <Overview of the management system> FIG. 1 is a schematic diagram for explaining the outline of the management system 1 in the present embodiment. In the present embodiment, a management system 1 that provides a client-server type or cloud type management service will be described, but the present invention is not limited thereto. The management method according to one aspect of the present invention may be implemented by a management system that provides a management service in other known formats (for example, a stand-alone type). The method for providing a management service by the management system according to one aspect of the present invention is not particularly limited. Further, the management method according to one aspect of the present invention is not limited to being implemented as a management service, and may be used in a management system or a management device for managing transportation facilities such as water transportation facilities, and the specific implementation mode is not particularly limited. The management method according to one aspect of the present invention may be applied to an integrated GIS or the like.

[0018] As shown in FIG. 1, the management system 1 includes a management server 10, an access computer 21 disposed in the management center 20, and a communication terminal (information and communication terminal) 30. The management system 1 is used to provide a management service using GIS. The management server 10 and the management center 20 may be used by the provider of the management service. The access computer 21 may be any computer that manages the data of the management server 10, and the specific mode is not particularly limited. The communication terminal 30 may be used, for example, by a user of the management service or by a person engaged in the business of the provider of the management service. The management server 10 and the communication terminal 30 may be communicable with each other via a communication network 5. The communication network 5 is not particularly limited, and a wired communication network and a wireless communication network can be appropriately used. In the management system 1, access may be made to the management server 10 from a plurality of communication terminals 30. The access computer 21 may be communicably connected to the management server 10, for example, by a local area network or a closed network (private line or virtual private network).

[0019] The management server 10 stores a GIS dataset GDS used in GIS. The GIS dataset GDS includes map data 201, water transportation facility data (facility data) 202, and offset information data (offset information) 203.

[0020] The map data 201 only needs to include data that serves as the background map (so-called base map) of GIS and includes official and private boundaries that can be specified as the reference point in the offset information in the management service provided by the management system 1, and the specific form is not particularly limited. As the map data 201, data provided (publicized) by an enterprise or the like can be used. For example, the basic map information (topographic map data) created by the Geospatial Information Authority of Japan can be used.

[0021] The water transportation facility data 202 only needs to be data for indicating the location of water transportation facilities on GIS, and the specific form is not particularly limited. The water transportation facilities include accessory equipment such as valves and taps in addition to pipelines and waterways. As the water transportation facility data 202, for example, data provided by a water supply business operator or the like can be used, or information on water transportation facilities owned by the provider of the management service can be used.

[0022] The offset information data 203 includes graphic information 231 and graphic attribute information 232. Although the offset information data 203 will be described in detail later, it will be described as follows with reference to FIG. 1 while comparing with the prior art.

[0023] In FIG. 1, as an example of the GIS display image displayed on the display unit 33 of the communication terminal 30, an enlarged view of the GIS display image is shown. The GIS display image is an image that, for example, based on a request from the communication terminal 30, GIS data is transmitted from the management server 10 to the communication terminal 30 and is displayed on the display or the like of the communication terminal 30 based on the GIS data. As will be described later, the GIS display image may also be an image displayed on the display or the like of the access computer 21. In the example shown in FIG. 1, in the image Im1, based on the map data 201 and the water transportation facility data 202, the images of the road and the pipeline are displayed as line data in the vector data. The image of the road is displayed as a thick solid line, and the image of the pipeline is displayed as a thick dashed line. The specific display mode of various data in the image is not particularly limited. In the drawings referred to in the following description of the present embodiment, various images included in the image (including figures such as circles and squares) are examples.

[0024] In an example shown in the image Im1, the branch point of the pipeline is specified as the facility point A, and two road boundary piles (public-private boundary piles) are respectively specified as the terrain points a1 and a2. In the image Im1, the facility point A is displayed as an image of a hollow black circle, and the terrain points a1 and a2 are respectively displayed as images of solid black circles. The line figure (first line figure) LA1 connecting the facility point (first facility point) A and the terrain point (first terrain point) a1 and the line figure (second line figure) LA2 connecting the facility point A and the terrain point (second terrain point) a2 are displayed as images of thin solid lines. The graphic information FA1 includes the facility point A, the terrain point a1, and the line figure LA1, and the graphic information FA2 includes the facility point A, the terrain point a2, and the line figure LA2. The graphic information FA1 and the graphic information FA2 correspond to the graphic information 231 in the offset information data 203.

[0025] In the image Im1, the graphic attribute information AA1 associated with the line graphic LA1 and the graphic attribute information AA2 associated with the line graphic LA2 are displayed. The graphic attribute information AA1 includes at least information on the mutual distance (horizontal distance) between the facility point A actually measured on-site and the terrain point a1. The graphic attribute information AA2 includes at least information on the mutual distance between the facility point A actually measured on-site and the terrain point a2. The graphic attribute information AA1 and the graphic attribute information AA2 correspond to the graphic attribute information 232 in the offset information data 203. In addition to the actually measured distance (actual measurement distance) on-site, the graphic attribute information AA1 and the graphic attribute information AA2 may include various types of information as described later.

[0026] In the management system 1, the pair of the line graphic LA1 and the graphic attribute information AA1 is managed as the first offset information data OA1 regarding the facility point A, and the pair of the line graphic LA2 and the graphic attribute information AA2 is managed as the second offset information data OA2 regarding the facility point A.

[0027] Note that the specific form of the management server 10 is not particularly limited. The management server 10 may be composed of a plurality of servers. The management server 10 functions as a server in the management service provided by the management system 1 (or a system for managing information about transportation facilities, etc.), and it is sufficient that users of the management service can use the management service in the country (for example, using the communication terminal 30). As the management server 10, for example, a server owned by the provider of the management service, or a server center in the country or abroad can be used. As described above, the management system 1 may be of the client-server type or of the cloud type. The access computer 21 is used to maintain (register, update, delete, etc.) the data of the management server 10 based on the server registration information Inf. The server registration information Inf may be, for example, information regarding the map data 201 or the water transportation facility data 202, and may be the source information for creating the offset diagram described later. The access computer 21 is typically located within the management center 20 and may be operated by the provider of the management service, but is not limited thereto, and the location of the access computer 21 is not particularly limited. "Maintenance" of data means modification (registration, update, deletion, etc.) of the data, and the same meaning is used in the following descriptions in this specification.

[0028] In contrast to the management system 1 in the present embodiment as described above, conventionally, the following correspondence has been made. That is, generally, an offset diagram is created based on offset information obtained by a constructor (for example, a construction company), who is the recipient of the order for the construction of water transportation facilities, through on-site surveying, etc. The offset diagram is a drawing in which offset information is described on the completed plan view, and is created using, for example, a CAD (Computer Aided Design) system. Hereinafter, the offset information that is the source for creating the offset diagram will be referred to as "source information for creating the offset diagram" for convenience of explanation.

[0029] Conventionally, for the offset diagrams and the source information for creating the offset diagrams, individual responses have been made for each local government and each facility. For example, when managing facility information on GIS, first, based on the completed drawings of the facility, information on the location and attributes (caliber, pipe type, installation year, etc.) of the constructed water transportation facility (water transportation facility data) is registered in the GIS data. Then, for the offset diagram and the source information for creating the offset diagram, various responses are made based on the instructions of the local government, such as (i) registering the offset diagram file linked to the facility on GIS, and (ii) not registering the offset diagram and the source information for creating the offset diagram in the GIS data.

[0030] Water transportation facilities are used for decades or more after construction. During that time, map data may be updated due to factors such as the relocation or widening of roads on the ground, changes in the block due to urban redevelopment, and improvement in the accuracy of topographic maps used in GIS data. In addition, the water transportation facility data may be updated, and the offset diagram and the source information for creating the offset diagram may also be updated by obtaining the latest offset information. Manually modifying the offset diagram, the source information for creating the offset diagram, or the water transportation facility data (location of the facility) on GIS in accordance with these independently occurring updates has been very laborious.

[0031] In the management method according to an embodiment of the present invention, on GIS, for facility points (characteristic facility points) corresponding to characteristic parts of water transportation facilities, offset information data (characteristic point offset information data) including graphic information and graphic attribute information is managed (specific examples will be described later). As a result, on GIS, the offset information data can be registered with a unified data specification, and the maintenance (registration, update, deletion, etc.) of the offset information data can be performed relatively easily. In addition, workers conducting on-site surveys around the facility points can visually confirm the offset information data on GIS more easily using a terminal according to the on-site usage conditions. Therefore, the convenience of a management system for managing the information of water transportation facilities (transportation facilities) on GIS by implementing the management method of this embodiment can be improved.

[0032] <Configuration of the Management System> Regarding the configuration of the management system 1, which is an example of a system that implements the management method in the present embodiment described above in outline, it is as follows with reference to FIG. 2. FIG. 2 is a block diagram showing a schematic configuration of the management system 1.

[0033] As shown in FIG. 2, the management system 1 includes a management server 10, an access computer 21, a communication terminal 30, and a communication network 5.

[0034] The management server 10 includes a control unit 110, a storage unit 120, and a communication unit 130. The control unit 110 includes a reception unit 111, a registration unit 112, an update unit 113, and a transmission data creation unit (data creation unit) 114. The storage unit 120 stores a GIS data set GDS, and the GIS data set GDS includes map data 201, water transportation facility data 202, offset information data 203, and association management data 204. The offset information data 203 includes graphic information 231 and graphic attribute information 232. The association management data 204 is data related to the association between the water transportation facility data 202 and the offset information data 203. The communication unit 130 is a communication interface for transmitting and receiving data to and from the access computer 21 or the communication terminal 30. Regarding each part included in the management server 10, details will be described later in conjunction with the description of the flow of the management service (management method) of the present embodiment implemented by the management system 1.

[0035] As for the access computer 21, the specific mode is not particularly limited. For example, a general PC (Personal Computer) having a communication function can be used. The access computer 21 includes a communication unit, an input unit, a control unit, and a display unit, which are the basic components of a general PC (not shown in the figure). By accessing the management server 10 from the access computer 21 and receiving authentication by the management server 10, the access computer 21 can be operated to perform maintenance of GIS data including the GIS data set GDS. The authentication method by the management server 10 is not particularly limited.

[0036] The communication terminal 30 includes a communication unit 31, an input unit 32, a display unit 33, a control unit 34, and a storage unit 35. The communication terminal 30 may typically be a PC, a smartphone, a tablet terminal, or the like. The communication unit 31 is a communication interface that transmits and receives data to and from the management server 10 or the access computer 21 via the communication network 5. The communication terminal 30 may, for example, be provided with a touch panel. In this case, the touch panel may function as the input unit 32 and the display unit 33. Alternatively, the input unit 32 may be, for example, a keyboard, a mouse, or the like, and the specific mode is not particularly limited. The display unit 33 may typically be a display device such as a liquid crystal display, and the specific mode is not particularly limited. The control unit 34 includes an application execution unit 341. The control unit 34 is composed of, for example, a CPU (Central Processing Unit) and memory components, etc., and comprehensively controls each part of the communication terminal 30. The control unit 34 reads and executes a program from the storage unit 35. The storage unit 35 may be composed of a storage medium such as an HDD (Hard Disk Drive) or an SSD (Solid State Drive). Application data 351 is stored in the storage unit 35.

[0037] By the app execution unit 341 reading app data 351 from the storage unit 35 and executing a GIS application (GIS app), while communicating with the management server 10, the management service using GIS by the management system 1 can be utilized on the communication terminal 30. The GIS app included in the app data 351 may be a dedicated app of the management system 1 when the management system 1 provides a client-server type management service. The application included in the app data 351 may be a general-purpose Internet browser when the management system 1 provides a cloud type management service. In this case, the GIS app may be executed on the management server 10.

[0038] (Registration process) Subsequently, with reference to FIGS. 3 to 7, an example of the process (registration process) at the time of registering the offset information data 203 in the management system 1 that implements the management method in the present embodiment will be described.

[0039] FIG. 3 is a flowchart showing an example of the flow of the process at the time of registering offset information data in the management system 1. FIG. 4 is a schematic diagram for explaining the target area for registering the offset information data. FIG. 5 is a schematic diagram for explaining the flow of the process at the time of registering the offset information data in the management system 1.

[0040] As shown in FIG. 3, in the management method (hereinafter referred to as "this management method") in the present embodiment, first, it connects to the management server 10 (S1). Specifically, it accesses the management server 10 from the access computer 21. The reception unit 111 of the management server 10 receives the access from the access computer 21. Here, the access computer 21 executes a GIS app related to the management service of the management system 1, for example, in the same manner as the communication terminal 30.

[0041] Next, in this management method, when communication with the management server 10 is connected, based on the current GIS dataset GDS in the management server 10, if necessary (for example, when the GIS dataset GDS temporarily stored in the access computer 21 is old), the data used in the GIS application may be updated (S3).

[0042] After the above S1 and before the following S5, a process for determining whether the access computer 21 can perform maintenance on the GIS dataset GDS may be performed by the reception unit 111. After receiving authentication by the reception unit 111, the maintenance process of the GIS dataset GDS by the access computer 21 can be started. A signal related to an operation on the GIS application executed on the access computer 21 is transmitted from the access computer 21 and received by the communication unit 130 of the management server 10. Based on the signal received by the communication unit 130, the control unit 110 may perform a maintenance process on the GIS dataset GDS in the storage unit 120. That is, the registration process of the offset information data in the management system 1 is performed based on, for example, an operation on the access computer 21, but in the management server 10, the process is performed by the registration unit 112 of the control unit 110. Therefore, the process by the registration unit 112 will be described below.

[0043] As shown in FIG. 4, the target area TA where the construction work of the water transportation facility, which is the target for registering the offset information data, is a part of the map data 201. In GIS, a map is displayed using a unified coordinate system. Hereinafter, the coordinates used on GIS are referred to as "GIS coordinates". GIS coordinates are typically coordinates of a projected coordinate system (plane rectangular coordinate system), and the position on GIS is represented by the X-axis and the Y-axis.

[0044] The wide-area map data MD displayed on the GIS may be composed of, for example, a plurality of map tiles MT. In the example shown in FIG. 4, an example of a part of the regional data RD in one map tile MT is shown, and further, an example of a part of the target area TA in the regional data RD is shown. In the target area TA, the road is displayed as an image of a thick solid line, and the pipeline is displayed as an image of a thick dashed line. In the example shown in FIG. 4, a plurality of road boundary piles installed on the road are displayed as images of hollow squares. Also, although not shown, images indicating the attached facilities in the pipeline may be displayed with various symbols. In the example shown in FIG. 4, for the sake of explanation, the starting point (construction start point) and the ending point (construction end point) of the construction work of the water transportation facility are shown as images of hollow diamonds, but in the GIS display image, the image of the diamond-shaped figure may not be displayed.

[0045] Referring to FIGS. 3 and 5, the process (S100) of creating the graphic information FA1 (graphic information 231) including the line graphic LA1 for the facility point A (the first facility point) in this management method, and the process (S110) of creating the first offset information data OA1 including the graphic information FA1 and the graphic attribute information AA1 for the facility point A will be described. The above S100 includes a process (S5) of specifying the facility point A, a process (S7) of specifying the terrain point a1 (the first terrain point), and a process (S9) of creating a line graphic LA1 (the first line graphic) connecting the facility point A and the terrain point a1. The above S110 includes the above S100 and a process (S11) of registering the graphic attribute information AA1 (the first graphic attribute information) in association with the line graphic LA1. In the above S5, S7, and S11, the source information of the offset drawing created at the time of construction completion based on the survey on-site can be used. The source information of the offset drawing may generally include the information used for creating the offset drawing, and detailed description of the specific content is omitted.

[0046] As shown in the image Im11 of FIG. 5, on the GIS, based on the map data 201 and the water transportation facility data 202 regarding the target area TA, images such as roads and pipelines are superimposed and displayed within a specific GIS coordinate range (in other words, at the same scale). The map data 201 and the water transportation facility data 202 may each be data handled as data layers in the GIS. Here, the GIS display image may be such that the GIS display image data created by the transmission data creation unit 114 in the management server 10 is transmitted from the communication unit 130 to the access computer 21 and is displayed by a display unit (not shown) under the control of the access computer 21 that has received the GIS display image data. This is the same for various images in the following description, and for the sake of clarity of explanation, repeated explanation will be omitted.

[0047] In this management method, as a characteristic part of the water transportation facility, for example, a branch point of a pipeline corresponding to the construction start point is specified as the facility point A (S5). Specifically, based on an operation of selecting the position of the construction start point (for example, aligning the cursor with the position of the construction start point and clicking) on the screen where the image Im11 is displayed, the registration unit 112 specifies the facility point A. As a result, as in the example shown in the image Im11 of FIG. 5, for example, an image of a hollow black circle may be displayed at the position of the facility point A. The registration unit 112 may set the GIS coordinates and identification information (label) of the facility point A. In the example shown in the image Im11, for the sake of convenience of explanation, the symbol of A is shown, but the symbol of A may not be displayed in the GIS display image, and the specific form of the identification information for distinguishing a plurality of facility points from each other is not particularly limited. This is the same for the symbols of each facility point and each terrain point shown in various images in the drawings referred to in the following description, and repeated explanation will be omitted.

[0048] Next, in this management method, for example, a road boundary pile corresponding to a characteristic location near the facility point A in the map data 201 is specified as the topographic point a1 (S7). The topographic point a1 is used to specify the position of the facility point A. Specifically, in the example shown in FIG. 5, among the four road boundary piles located near the facility point A on the GIS display screen, the registration unit 112 specifies the topographic point a1 based on an operation of selecting the position of the road boundary pile included in the source information of the offset diagram (for example, aligning the cursor with the road boundary pile and clicking). As a result, as in the example shown in the image Im12 of FIG. 5, for example, an image of a solid black circle may be displayed at the position of the topographic point a1. The registration unit 112 may set the GIS coordinates and identification information of the topographic point a1.

[0049] Next, in this management method, a line graphic LA1 connecting the facility point A and the topographic point a1 is created (S9). For example, when the topographic point a1 is specified in S9 above, the registration unit 112 creates a line graphic LA1 connecting them based on the positions of the facility point A and the topographic point a1. As a result, as in the example shown in the image Im12 of FIG. 5, for example, an image of a line segment connecting the facility point A and the topographic point a1 may be displayed. The specific display mode of the line graphic LA1 is not particularly limited and may be a line segment, a dashed line, a dotted line, etc. The registration unit 112 creates graphic information FA1 including the facility point A, the topographic point a1, and the line graphic LA1.

[0050] Next, in this management method, graphic attribute information AA1 is registered in association with the line graphic LA1 (S11). The graphic attribute information AA1 includes information on the actually measured distance (unit: meter, for example) between the facility point A and the terrain point a1. Specifically, based on an operation of selecting the line graphic LA1 (for example, moving the cursor to the position of the line graphic LA1 and clicking) on the screen where the image Im12 is displayed, the registration unit 112 may pop up a input window for inputting the graphic attribute information AA1 in the GIS display image, for example. Alternatively, the above input window may be displayed in the GIS display image triggered by the registration unit 112 creating the line graphic LA1. By inputting the distance measured on site (actual measured distance) between the facility point A and the terrain point a1 based on the information on the source of the offset diagram into the above input window, the registration unit 112 creates first offset information data OA1 (offset information data) including the graphic information FA1 and the graphic attribute information AA1 for the facility point A. The above input window may be hidden triggered by the completion of the input of the graphic attribute information AA1. After the registration of the first offset information data OA1, when an operation of selecting the line graphic LA1 (for example, moving the cursor to the position of the line graphic LA1 and clicking) is performed, a display window for displaying the graphic attribute information AA1 may be popped up. In the example shown in the image Im13 of FIG. 5, in the GIS display image, a window showing the registration information of the graphic attribute information AA1 is displayed near the facility point A.

[0051] S5, S7, S9, and S11 as described above can be said to be, in other words, the step (S110) of registering the first offset information data OA1 (offset information). In this management method, on the GIS, (i) graphic information FA1 including the facility point A, the terrain point a1, and the line graphic LA1 connecting the facility point A and the terrain point a1, and (ii) graphic attribute information AA1 associated with the line graphic LA1 and including the measured distances between the facility point A and the terrain point a1 are used to manage the first offset information data OA1 (offset information). Thereby, as described above, the data specifications can be unified and the offset information can be managed on the GIS, making it easier to perform the operation of newly registering the offset information. Therefore, the convenience in managing information related to transportation facilities on the GIS can be improved.

[0052] Here, conventionally, the water transportation facility data 202 managed on the GIS includes, as described above, information on the attributes (diameter, pipe type, installation year, etc.) and location (GIS coordinates) of the water transportation facility. In this management method, on the GIS, in the first offset information data OA1 (offset information), the facility point A in the graphic information FA1 and the facility point in the water transportation facility data 202 corresponding to the facility point A are linked to each other by coordinates (GIS coordinates). The registration unit 112 may create the linking management data 204 regarding the linking (corresponding relationship) between the facility point A in the graphic information FA1 and the T-branch point of the pipeline corresponding to the facility point A in the water transportation facility data 202, and store it in the storage unit 120.

[0053] FIG. 6 is a schematic diagram for explaining the relationship between the offset information data managed in the management system 1, the map data, and the water transportation facility data. As shown in the figure indicated by reference numeral 6001 in FIG. 6, in the graphic information FA1, it is assumed that the GIS coordinates of the facility point A are (X1, Y1) and the GIS coordinates of the terrain point a1 are (X2, Y2). The horizontal distance (straight-line distance) between the facility point A and the terrain point a1 can be calculated on the GIS based on the GIS coordinates of the facility point A and the terrain point a1. Hereinafter, the horizontal distance calculated based on the GIS coordinates is referred to as the "calculated distance CD", and the horizontal distance measured on-site and included in the source information for creating the offset diagram is referred to as the "measured distance MD". In the example shown in FIG. 6, the calculated distance CD of the line graphic LA1 between the facility point A and the terrain point a1 is D1, and the measured distance MD included in the graphic attribute information AA1 is D2.

[0054] As shown in the figure indicated by reference numeral 6002 in FIG. 6, the source information for creating the offset diagram is obtained, for example, by on-site survey performed by a surveyor. Hereinafter, the coordinates determined by on-site survey based on a predetermined geodetic system (for example, the World Geodetic System) are referred to as "survey coordinates". The coordinate axes in the survey coordinates are defined as the MX axis and the MY axis. In the management system 1, map data 201 in the same geodetic system as the survey coordinates may be used, or conversion processing may be performed on the map data 201 or the survey coordinates so that the geodetic system of the GIS coordinates in the management system 1 is the same as the geodetic system of the survey coordinates.

[0055] At the site, the T-branch point of the pipeline corresponding to facility point A is set as survey point PA, and the road boundary pile corresponding to topographic point a1 is set as survey point Pa1. The surveyor specifies the survey coordinates of survey point PA at the position of survey point PA, for example, by using GNSS (Global Navigation Satellite System) with received signals from a plurality of satellites S. The method for specifying the survey coordinates of the survey points at the site is not particularly limited. For example, the survey coordinates of the survey points may be specified by triangulation based on reference points. The surveyor may also specify the survey coordinates for survey point Pa1. In the example shown in FIG. 6, the survey coordinates of survey point PA are (MX1, MY1), and the survey coordinates of survey point Pa1 are (MX2, MY2). The surveyor actually measures the horizontal distance between survey point PA and survey point Pa1. The specific method for actually measuring the horizontal distance at the site is not particularly limited. For example, a distance measuring and angle measuring instrument such as a total station or a laser distance meter can be used. In the on-site survey, a survey is also conducted on survey point Pa2 (MX3, MY3) corresponding to topographic point a2 described later. In the on-site survey, information generally used as source information for creating an offset map is appropriately acquired.

[0056] The actually measured distance MD (D2 in the example shown in FIG. 6) between survey point PA and survey point Pa1 does not have to match the calculated distance CD (D1 in the example shown in FIG. 6) between facility point A and topographic point a1 on the GIS. This is because the GIS coordinates of facility point A and topographic point a1 on the GIS are determined based on the water transportation facility data 202 and the map data 201 as described above. For example, it is affected by errors in the water transportation facility data 202 and the map data 201 respectively. For the same reason, the survey coordinates at survey point PA and the GIS coordinates of facility point A based on the water transportation facility data 202 do not have to match each other.

[0057] On the one hand, the GIS coordinates (X1, Y1) of facility point A match the GIS coordinates of the T-junction point of the pipeline selected as facility point A based on the water transportation facility data 202. In this management method, the correspondence relationship between facility point A in the offset information data 203 and the point corresponding to facility point A in the water transportation facility data 202 is managed as the association management data 204 as described above. Also, the GIS coordinates (X2, Y2) of topographic point a1 also match the GIS coordinates of the road boundary pile selected as topographic point a1 based on the map data 201. However, in this management method, the correspondence relationship between topographic point a1 in the offset information data 203 and the point corresponding to topographic point a1 in the map data 201 is not managed as the association management data 204.

[0058] Conventionally, regarding offset diagrams and the source information for creating offset diagrams, when corrections were required due to changes on the ground, it was difficult to compare the creation time of existing offset diagrams and their source information with the time of the changes on the ground. Therefore, there was a problem that it was difficult to determine whether corrections were necessary and to judge the authenticity of information regarding corrections. Furthermore, it took time to correct the positions of water transportation facilities managed on GIS.

[0059] In contrast, according to this management method, for example, when the map data 201 is updated, by comparing the GIS coordinates of topographic points in the offset information data 203 managed on GIS with the GIS coordinates of, for example, the road boundary piles corresponding to the above topographic points in the updated map data 201 (determining whether they match or are different from each other), it becomes easier to judge whether corrections are required for the offset information data 203. Also, in this management method, the water transportation facility data 202 and the offset information data 203 are associated by the association management data 204. Therefore, by correcting the GIS coordinates of topographic points in the offset information data 203 to match the updated map data 201 (correcting the graphic information 231), it becomes easier to correct the water transportation facility data 202 according to the GIS coordinates of the facility points in the corrected graphic information 231 (specifically, refer to the correction process described later).

[0060] Referring to FIGS. 3 and 7, further, the process of creating graphic information FA2 (graphic information 231) including the line graphic LA2 for facility point A in this management method, and the process of creating second offset information data OA2 including graphic information FA2 and graphic attribute information AA2 for facility point A will be described. FIG. 7 is a schematic diagram for explaining the processing flow at the time of registering offset information data into the management system 1.

[0061] In this management method, after S11, when it is necessary to set topographic point a2 for facility point A (YES in S13), another topographic point different from topographic point a1 is specified (S15). Specifically, based on an operation of selecting the position of facility point A on the screen where image Im13 is displayed (for example, clicking with the cursor aligned with the position of facility point A), the registration unit 112 may transition the GIS display image to a state where registration of topographic points for facility point A is accepted. Alternatively, the registration unit 112 may subsequently transition the GIS display image to a state where registration of another topographic point for facility point A is accepted after S11. Also, the registration unit 112 determines whether there is a candidate for a topographic point different from topographic point a1 in the map data 201 in the vicinity of facility point A, and if there is a candidate for a topographic point, may transition the GIS display image to a state where registration of another topographic point for facility point A is accepted.

[0062] In the example shown in FIG. 7, on the GIS display screen, based on an operation of selecting the position of the road boundary pile included in the source information for creating the offset diagram among the three road boundary piles located in the vicinity of facility point A and not selected as topographic point a1 (for example, clicking with the cursor aligned with the road boundary pile), the registration unit 112 specifies topographic point a2. As a result, as in the example shown in image Im14 of FIG. 7, for example, an image of a solid black circle may be displayed at the position of topographic point a2. The registration unit 112 may set the GIS coordinates and identification information of topographic point a2.

[0063] Next, in this management method, a line figure LA2 connecting the facility point A and the topographical point a2 is created (S17), and figure attribute information AA2 is registered in association with the line figure LA2 (S19). The specific operations in S17 and S19 may be the same as the operations described for S9 and S11 above, and detailed descriptions are omitted. The registration unit 112 creates second offset information data OA2 including figure information FA2 and figure attribute information AA2 for the facility point A. In the example shown in the image Im14 of FIG. 7, in the GIS display image, a window showing the registration information of the figure attribute information AA2 is displayed near the facility point A.

[0064] As described above, S15, S17, and S19 can be said to be, in other words, steps of registering second offset information data OA2 (offset information). In this management method, on the GIS, (i) figure information FA2 including the facility point A, the topographical point a2, and the line figure LA2 connecting the facility point A and the topographical point a2, and (ii) figure attribute information AA2 associated with the line figure LA2 and including the actually measured distances between the facility point A and the topographical point a2 are managed. On the GIS, the facility point A in the figure information FA2 and the facility point in the water transportation facility data 202 corresponding to the facility point A are linked to each other by coordinates. Thereby, the position of the facility point A can be more accurately and easily grasped.

[0065] Note that when it is not necessary to set the topographical point a2 for the facility point A (NO in S13), the registration process may be terminated (END). For example, since the facility point A corresponds to a T-junction point of a pipeline located at a T-junction of a road, two base points are often included for the facility point A as the source information for creating the offset diagram. Therefore, typically for the facility point A in the examples shown in FIGS. 5 and 7, YES is obtained in S13. On the other hand, the source information for creating the offset diagram may include, for example, valve plugs as measurement points, and offset information using one point of the public-private boundary closest to the measurement point as a base point (see the facility point D in the image Im15 shown in FIG. 7).

[0066] In this management method, the facility points only need to correspond to the characteristic parts in the water transportation facility. Specifically, the points corresponding to the measurement points in the source information for creating the offset diagram may be specified based on the water transportation facility data 202. Specific examples of the measurement points may include the junction points with existing pipes, the branch points of T-shaped pipes, the center points of fire hydrants, the bending points of curved pipes, the center points of valves and plugs, the center points of manholes, etc. These are examples, and the measurement points in the source information for creating the offset diagram may be set in accordance with laws and regulations, etc.

[0067] On the GIS, for the target area TA, based on the source information for creating the offset diagram, a process of registering the offset information data 203 at a plurality of facility points can be performed. In the example shown in the image Im15 of Fig. 7, the facility point B is, like the facility point A, a branch point of a T-shaped pipe, the facility point C is the end point of the construction, and may be, for example, the center point of a fire hydrant. The facility point D is the center point of valves and plugs, and only the first offset information data is registered for the facility point D (NO in S13 after the processes of S5 to S11 above). The facility point E is the bending point of a curved pipe. For the facility point B, the topographic points b1, b2 (road boundary piles) are specified, for the facility point C, the topographic points c1, c2 (road boundary piles) are specified, and for the facility point E, the topographic points e1, e2 (road boundary piles) are specified. For the facility point D, the nearest road boundary is specified as the topographic point d1. For the facility point D, in S7 above, for example, by performing an operation of selecting the road boundary, the topographic point d1 may be specified. The offset information data 203 may be registered as a data layer in the GIS. A plurality of offset information data 203 may be registered at one facility point.

[0068] Also, the offset information data 203 may include, based on the source information for creating the offset diagram, in addition to the actually measured distance MD, for example, the following information: · Classification: "Offset" or "Separation" · Soil cover [unit is, for example, meter]: the distance from the top end of the pipeline to the ground surface · Survey coordinates: the geographical coordinates of the base point and the measurement point specified by on-site survey · Update date: completion date, etc. · Group name: Construction name, etc.

[0069] The information of the above survey coordinates may be registered, for example, as the attribute information of facility points or topographic points. The information of the above classification, ground cover, update date, and group name may be registered, for example, as graphic attribute information 232. The information of the above ground cover may be registered for the locations where such registration is required based on the creation criteria of the offset diagram. Since the offset information data 203 registered in the first embodiment of the present invention corresponds to "offset" in the above classification information, the offset information data 203 may include the information of the "offset" classification. For example, in the graphic attribute information 232, items related to classification may be set. Regarding "separation", details will be described later in the second embodiment.

[0070] In this management method, on the GIS, based on the graphic information FA1, the facility point A, the topographic point a1, and the line graphic LA1 are displayed. For example, by using the communication terminal 30 to execute the GIS application and access the management server 10, the registered offset information data 203 can be confirmed. Specifically, when a data request instruction is sent by operating the communication terminal 30 and received by the communication unit 130, the transmission data creation unit 114 creates display data for displaying a GIS display image such as the image Im15 and transmits it to the communication terminal 30. For example, on the GIS, by selecting the line graphic LA1, the graphic attribute information AA1 can also be confirmed. Thereby, it is possible to easily visually confirm the locations where the offset information is registered and the locations where it is not registered. Therefore, the convenience when managing information related to transportation facilities on the GIS can be further improved.

[0071] For example, an operator who conducts on-site surveys using the communication terminal 30 around the facility point A can make the first offset information data OA1 and the second offset information data OA2 regarding the facility point A easier to (visually) confirm by executing the GIS application. The operator can also confirm the graphic attribute information AA1 and the graphic attribute information AA2 on the screen where the GIS display image is shown.

[0072] So far, the flow at the time of registering the offset information data 203 (during facility construction) and the display in the GIS display image of the registered offset information data 203 have been described. Next, an example of the processing during facility operation will be described. Examples of the processing during facility operation include, for example, the complement processing of the offset information data 203, the correction processing of the water transportation facility data 202, and the addition processing of the offset information data 203.

[0073] (Complement Processing) FIG. 8 is a flowchart showing an example of the processing flow when complementing the offset information data to the management system 1. FIG. 9 is a schematic diagram showing an example of the GIS display image after complementing the offset information data to the management system 1. The processing (complement processing) when complementing the offset information data to the management system 1 may be performed, for example, by the registration unit 112 in the control unit 110.

[0074] As shown in FIG. 8, in this management method, for example, when complementing the offset information data for a facility point where the offset information data is not registered in the target area TA, the following processing may be performed. First, after performing the same steps as S1 and S3 described above, on the GIS, select the facility point where the offset information data is to be newly registered (S21). In the example shown in FIGS. 8 and 9, the facility point F is newly registered. Specifically, based on the operation of selecting the position of the facility point to be newly registered on the screen where the GIS display image regarding the target area TA is shown, the registration unit 112 identifies the facility point F. The facility point F is the bending point of the curved pipe.

[0075] Next, in this management method, a road boundary pile corresponding to a characteristic location near the facility point F in the map data 201 is specified as the topographic point f1 (S23). Then, a line graphic LF1 connecting the facility point F and the topographic point f1 is created (S25). Here, when there is no information on the measured distance MD regarding the line graphic LF1, on-site surveying may be performed on the survey points corresponding to the facility point F and the topographic point f1 (S30). Next, graphic attribute information AF1 is registered in association with the line graphic LF1 (S27). Thereby, offset information data 203 can be registered for the facility point F. The specific operations in S21, S23, S25, and S27 may be the same as the operations described for S5, S7, S9, and S11 above, and detailed description thereof is omitted. Also, for the facility point F, offset information data 203 including line graphic information including the facility point F, the topographic point f2, and the line graphic LF2, and graphic attribute information AF2 associated with the line graphic LF2 may be registered.

[0076] (Correction process) FIG. 10 is a flowchart showing an example of the flow of a process for correcting water transportation facility data 202 in the management system 1. The process for correcting the water transportation facility data 202 (correction process) in the management system 1 may be performed, for example, by the update unit 113 of the control unit 110.

[0077] As shown in FIG. 10, in this management method, after performing the same steps as S1 and S3 described above, if there is no facility point in the offset information data 203 where the topographic point does not match the map data 201 (NO in S41), correction of the water transportation facility data 202 is unnecessary and the correction process may not be started (END). On the other hand, if there is a facility point in the offset information data 203 where the topographic point does not match the map data 201 (YES in S41), for example, the correction process may be performed as follows. Typically, due to the update of the map data 201, the GIS coordinates of the topographic point in the offset information data 203 registered for a certain facility point and the GIS coordinates of the point corresponding to the topographic point in the map data 201 (e.g., a road boundary pile) may no longer match each other.

[0078] When a topographic point candidate (for example, a road boundary pile located near the facility point) corresponding to the topographic point in the offset information data 203 of the facility point detected in S41 exists in the map data 201 (YES in S43), the GIS coordinates of the topographic point in the offset information data 203 regarding the facility point are corrected to the GIS coordinates of the detected topographic point candidate. Examples of such cases include cases where the GIS coordinates of the map data 201 are corrected as a whole within a certain range due to, for example, improvement in the accuracy of the map data 201 or natural fluctuations. At this time, by maintaining the shape of the line graphic in the graphic information 231, the GIS coordinates of the facility point can be corrected along with the correction of the GIS coordinates of the topographic point (S45). Specifically, the update unit 113 determines whether the GIS coordinates of the topographic point in the offset information data 203 match the GIS coordinates of the point corresponding to the topographic point in the updated map data 201. When there is a facility point having non-matching offset information data 203, the update unit 113 corrects the GIS coordinates of the topographic point in the offset information data 203 of the facility point so as to match the GIS coordinates of the point corresponding to the topographic point in the updated map data 201. The update unit 113 corrects the GIS coordinates of the facility point in accordance with the correction of the GIS coordinates of the topographic point by maintaining the shape of the line graphic in the graphic information 231.

[0079] Then, based on the association management data 204, since the GIS coordinates of the facility points and the water transportation facility data 202 are associated with each other, the water transportation facility data 202 can be corrected based on the GIS coordinates of the corrected facility points (S47). Specifically, for example, when the update unit 113 performs the correction process of the water transportation facility data 202 for a target area, for a plurality of facility points within the target area, the GIS coordinates of the topographic points and facility points in the offset information data 203 are corrected as necessary. The update unit 113 corrects the GIS coordinates of the points corresponding to the facility points in the water transportation facility data 202 so as to correspond to the corrected GIS coordinates of the plurality of facility points within the target area based on the association management data 204. Then, the update unit 113 corrects the position of the pipeline in the water transportation facility data 202 in accordance with the correction of the GIS coordinates of the points corresponding to the facility points in the water transportation facility data 202. At this time, the update unit 113 corrects the water transportation facility data 202 so that the overall shape of the pipeline formed by the straight pipe portion or the like in the target area is maintained. The operator of the access computer 21 may correct the offset information data 203 and the water transportation facility data 202 so that the overall shape is maintained. The shape of the line graphic in the offset information data 203 may be corrected.

[0080] Also, when the topographic point candidates (such as road boundary piles) corresponding to the topographic points in the offset information data of the facility points detected in S41 do not exist in the map data 201 (NO in S43), on-site survey is performed for the survey points corresponding to the facility points and new topographic points for which the offset information data is to be corrected (S51). Such cases include, for example, cases where the map data 201 has changed significantly around the facility points due to construction on the ground or the like. Next, based on the source information of the offset map regarding the facility points and topographic points obtained by the on-site survey, the offset information data 203 is registered (S53). Then, based on the source information of the offset map, the water transportation facility data 202 is updated (S55).

[0081] In step S43, when there is a facility point having unmatched offset information data 203, the update unit 113 may control the transmission data creation unit 114 to highlight the facility point in the GIS display image. With reference to the display in the GIS display image, the operator of the access computer 21 can also modify the offset information data 203 and the water transportation facility data 202.

[0082] (Additional process) In this management method, for an area where offset information data is not registered (an area where there is no source information for creating an offset map), for example, based on on-site photos or aerial photos taken by a drone or the like, facility points and topographic points can be extracted, distances can be measured, and offset information data can be newly added.

[0083] [Another configuration example] (A) FIG. 11 is a schematic diagram for explaining an example of offset information data managed in the management system 1. As shown in FIG. 11, in this management method, for example, in the graphic attribute information AA1, the information on the measurement date of the actually measured distance MD between the facility point A and the topographic point a1 may be included. Specifically, in the aforementioned S11, by inputting the actually measured distance MD and the measurement date, the registration unit 112 creates first offset information data OA1 (offset information data) including the information on the measurement date for the facility point A.

[0084] This makes it easy to confirm the creation time of the source information for the offset map that is the basis of the first offset information data OA1 regarding the facility point A. Also, by comparing the update date of the map data 201 with the measurement date, it becomes easier to determine whether the offset information needs to be corrected. For example, when multiple offset information data are registered for the facility point A due to, for example, the update of the offset information data, the latest and highly accurate offset information data can be easily selected.

[0085] (B) FIG. 12 is a schematic diagram for explaining an example of offset information data managed in the management system 1. As shown in FIG. 12, in this management method, for example, in the graphic attribute information AA1, it may include information on the registration type of the first offset information data OA1 selected from a plurality of preset registration types regarding the reason for registering the offset information data. Specifically, in the aforementioned S11, while inputting the measured distance MD, the registration type of the first offset information data OA1 is selected from among a plurality of registration types displayed in the window. Thereby, the registration unit 112 creates the first offset information data OA1 for the facility point A including the information on the registration type. Examples of the registration type include, for example, at the time of construction, at the time of road change, at the time of additional offset, etc.

[0086] For example, for the facility point A, when a plurality of offset information is added over a long period of time, the registration data may become complicated. According to the above management method, the offset information for the facility point A includes the origin (reason) for registering (updating) the offset information. Therefore, it is easy to grasp the history of the offset information. As a result, the possibility of the registration data becoming complicated can be reduced.

[0087] (C) In an example of the management system 1, the data of the management server 10 may be maintained using the communication terminal 30 connected to the management server 10 via a dedicated line. Also, in an example of the management system 1, it may be possible to access the management server 10 from the communication terminal 30 and, by receiving authentication by the management server 10, operate the communication terminal 30 to perform maintenance of the GIS data.

[0088] (D) The offset information data 203 is not limited to data handled as a data layer in GIS, and may be registered by being associated with points corresponding to facility points in the water transportation facility data 202 by the association management data 204. On GIS, based on the map data 201, the water transportation facility data 202, and the association management data 204, the graphic information 231 and the graphic attribute information 232 may be displayed as an image overlaid on images such as roads and pipelines.

[0089] (E) The management server 10 may function as a management device, and such a management device also falls within the scope of the present invention. The management device in one embodiment of the present invention includes a reception unit (reception unit 111, registration unit 112) that receives registration of offset information data to GIS, and a data creation unit (transmission data creation unit 114) that creates display data for displaying the offset information data on GIS.

[0090] Further, in a management system in one embodiment of the present invention, the management system includes the above management device and a communication terminal 30 that is communicable with the management device and can execute GIS. In the communication terminal 30, the offset information data 203 is displayed on GIS based on the display data transmitted from the management device.

[0091] [Embodiment 2] Regarding another embodiment of the present invention, if it is described based on FIG. 13, it is as follows. In addition, the configuration other than what is described in the present embodiment is the same as that in the first embodiment. Also, for the sake of convenience of explanation, members having the same functions as the members shown in the drawings of the first embodiment are given the same reference numerals, and the description thereof is omitted.

[0092] In the above-described Embodiment 1, the offset information data (feature point offset information data) registered for one or more (typically two) facility points (characteristic facility points) corresponding to characteristic parts of water transportation facilities on a GIS was described. In contrast, in Embodiment 2, the offset information data (specific point offset information data) registered for only one point (specific point) specified from a portion displayed as a linear image on a GIS corresponding to a straight pipe or the like in a water transportation facility will be described.

[0093] Generally, the source information for creating an offset diagram may include information indicating the distance (separation) from the public-private boundary to a (linear) pipeline for parts such as straight pipes in water transportation facilities. Such information is classified as "separation".

[0094] FIG. 13 is a schematic diagram for explaining the offset information data managed in the management method according to Embodiment 2 of the present invention. Similar to Embodiment 1, the management method in this Embodiment 2 may be implemented by, for example, the management system 1. The diagram indicated by reference numeral 1301 in FIG. 13 corresponds to an example of a GIS display image. The diagram indicated by reference numeral 1302 in FIG. 13 shows the configuration of the specific point offset information data in Embodiment 2.

[0095] As shown in FIG. 13, the offset information data 203 regarding separation may include graphic information 234 and graphic attribute information 235. In the example shown in FIG. 13, a certain position in a linear pipeline is specified as a specific facility point G, and the point at the position on the public-private boundary closest to the specific facility point G is specified as a specific terrain point g. In the example shown in FIG. 13, a line graphic LG regarding the specific facility point G and the specific terrain point g is shown. The line graphic LG includes two arrows directed from the outside of the specific facility point G and the specific terrain point g toward each of them on a virtual straight line passing through the specific facility point G and the specific terrain point g. The graphic information 234 includes the specific facility point G, the specific terrain point g, and the line graphic LG. The specific display mode of the graphic information 234 is not particularly limited.

[0096] Also, in the example shown in FIG. 13, graphic attribute information 235 associated with the line graphic LG is shown. The graphic attribute information 235 includes at least information indicating that it is a classification of separation and information on the mutual distance (horizontal distance) between the pipeline and the public-private boundary actually measured at the site. The graphic attribute information 235 may include information regarding the soil cover. Similar to what was described in the first embodiment, the graphic attribute information 235 may include information on the measurement date of the mutual measured distance between the pipeline and the public-private boundary at the position corresponding to the specific facility point G, and may also include information on the registration type of the offset information data.

[0097] In the management method of the second embodiment, the pair of the line graphic LG and the graphic attribute information 235 is managed as offset information data 203 (specific point offset information data) regarding the specific facility point G. The management method of the second embodiment can naturally be combined with the management method described in the first embodiment.

[0098] As the registration process in the management system 1 for the offset information data 203 (specific point offset information data) managed by the management method in the second embodiment, for example, it may be performed as follows. For the part of the water transportation facility (such as a straight pipe) displayed as a straight line in the GIS display image, based on an operation of selecting an arbitrary position (for example, aligning the cursor with the position of the straight pipe and clicking), the registration unit 112 identifies the specific facility point G. The registration unit 112 may set the GIS coordinates and identification information of the specific facility point G. Then, the registration unit 112 identifies the point of the public-private boundary closest to the specific facility point G as the specific terrain point g. The registration unit 112 may set the GIS coordinates and identification information of the terrain point g. The registration unit 112 creates a line graphic LG, accepts the input of the graphic attribute information 235, and registers the graphic attribute information 235 in association with the line graphic LG. Thereby, the registration unit 112 creates the offset information data 203 (specific point offset information data) including the graphic information 234 and the graphic attribute information 235 for the specific facility point G. The registration unit 112 may create the association management data 204 regarding the association (correspondence relationship) between the specific facility point G in the graphic information 234 and the part of the pipeline corresponding to the specific facility point G in the water transportation facility data 202, and store it in the storage unit 120.

[0099] Regarding the complement processing of the offset information data 203, the correction processing of the water transportation facility data 202, and the addition processing of the offset information data 203 during facility use, it can be understood by referring to what was described in the first embodiment. Therefore, detailed description is omitted.

[0100] 〔Summary〕 The management method according to Aspect 1 of the present invention is a management method for managing offset information regarding the location of transportation facilities buried underground on a geographic information system, where the offset information includes: (i) a first facility point corresponding to a characteristic part of the transportation facility; (ii) a first terrain point corresponding to a characteristic location in the map data in the geographic information system that is used to identify the location of the first facility point and is located near the first facility point; and (iii) a first graphical shape connecting the first facility point and the first terrain point, which is included in first graphical information, and first graphical attribute information associated with the first graphical shape and including information on the actually measured distance between the first facility point and the first terrain point.

[0101] According to the above management method, on a geographic information system, offset information including graphical information and graphical attribute information is managed for facility points in transportation facilities. By unifying the data specifications of the offset information managed on the geographic information system, it is possible to facilitate the registration and management of the offset information. Therefore, it is easy to perform operations such as newly registering offset information or updating offset information in response to updates of map data. An operator conducting on-site surveys around a facility point can also easily (visually) confirm the offset information regarding the facility point by accessing the geographic information system using a communication terminal. Thus, the convenience in managing information regarding transportation facilities on the geographic information system can be improved.

[0102] In the management method according to Aspect 2 of the present invention, in the above Aspect 1, the geographic information system includes facility data including attribute information and location information of the transportation facility, and the offset information is such that on the geographic information system, the first facility point in the first graphical information and the facility point in the facility data corresponding to the first facility point are linked by coordinates to each other.

[0103] According to the above management method, in the registration data (registration data set) of the geographic information system, the offset information is associated with the facility data by coordinates. For example, when the map data is updated, on the geographic information system, by comparing the position of the topographic points in the offset information associated with each facility point by coordinates with the updated map data, it is possible to easily determine whether the offset information needs to be corrected. Further, by correcting the topographic points in the offset information to match the updated map data, it is possible to easily correct the facility data using the first graphic information and the first graphic attribute information corresponding to the topographic points.

[0104] In the management method according to Aspect 3 of the present invention, in the above Aspect 1 or 2, the first graphic attribute information includes information on the measurement date of the distance.

[0105] According to the above management method, it becomes easy to confirm the creation time of the offset information for a certain facility point. Further, by comparing the update date of the map data with the measurement date of the offset information, it is possible to easily determine whether the offset information needs to be corrected.

[0106] In the management method according to Aspect 4 of the present invention, in any one of the above Aspects 1 to 3, the first graphic attribute information includes information on the registration type of the offset information, which is selected from a plurality of preset registration types regarding the reason for registering the offset information.

[0107] When a plurality of offset information is added for a certain facility point over a long period of time, the registration data may become complicated. According to the above management method, since the offset information for a certain facility point includes the origin (reason) for registering (updating) the offset information, it is possible to easily grasp the history of the offset information. Therefore, it is possible to reduce the possibility of the registration data becoming complicated.

[0108] In the management method according to Aspect 5 of the present invention, in any one of Aspects 1 to 4, based on the first graphic information, on the geographic information system, the first facility point, the first topographic point, and the first line graphic are displayed.

[0109] According to the above management method, an operator who conducts on-site surveys around a facility point can (visually) confirm offset information regarding the facility point by accessing a geographic information system using a communication terminal, thus improving convenience.

[0110] In the management method according to Aspect 6 of the present invention, in any one of Aspects 1 to 5, the offset information includes second graphic information including the position information of a second topographic point different from the first topographic point corresponding to a characteristic location near the first facility point among the map data in the geographic information system with respect to the first facility point, and a second line graphic connecting the first facility point and the second topographic point, and second graphic attribute information associated with the second line graphic and including information on the actually measured distance between the first facility point and the second topographic point. On the geographic information system, the first facility point in the second graphic information and the facility point in the facility data corresponding to the first facility point are linked to each other in terms of coordinates.

[0111] According to the above management method, the position of the facility point can be more accurately and easily grasped.

[0112] The management device according to Aspect 7 of the present invention is a management device that manages offset information regarding the position of a transportation facility buried underground on a geographic information system, wherein the offset information includes: (i) position information of a first facility point corresponding to a characteristic part of the transportation facility; (ii) position information of a first terrain point corresponding to a characteristic location in the map data in the geographic information system, which is used to identify the position of the first facility point and is located near the first facility point; and (iii) a first graphic information including a first graphic shape connecting the first facility point and the first terrain point. The offset information further includes first graphic attribute information associated with the first graphic shape and including information on the actually measured distance between the first facility point and the first terrain point. The management device includes a reception unit that receives registration of the offset information in the geographic information system, and a data creation unit that creates display data for displaying the offset information on the geographic information system.

[0113] The management system according to Aspect 8 of the present invention includes the management device according to Aspect 7 and a communication terminal that can communicate with the management device and can execute the geographic information system. Based on the display data transmitted from the management device to the communication terminal, the offset information is displayed on the geographic information system executed on the communication terminal.

[0114] The management system according to each aspect of the present invention may be implemented by a computer. In this case, a control program for a management device that realizes the management system by operating a computer as each part (software element) included in the management system, and a computer-readable recording medium on which the program is recorded also fall within the scope of the present invention.

[0115] 〔Example of implementation by software〕 The functions of the management server 10 (hereinafter referred to as "device") can be realized by a program for causing a computer to function as the device, and can be realized by a program for causing a computer to function as each control block of the device (especially each part included in the control unit 110).

[0116] In this case, as hardware for executing the above program, the device includes a computer having at least one control device (for example, a processor) and at least one storage device (for example, a memory). By executing the above program with this control device and storage device, each function described in each of the above embodiments is realized.

[0117] The above program may be recorded on one or more computer-readable recording media, rather than temporarily. This recording medium may or may not be included in the above device. In the latter case, the above program may be supplied to the above device via any wired or wireless transmission medium.

[0118] Also, part or all of the functions of each of the above control blocks can also be realized by a logic circuit. For example, an integrated circuit in which a logic circuit functioning as each of the above control blocks is formed is also included in the scope of the present invention. In addition to this, for example, it is also possible to realize the functions of each of the above control blocks by a quantum computer.

[0119] Also, each process described in each of the above embodiments may be executed by AI (Artificial Intelligence). In this case, the AI may operate in the above control device, or may operate in another device (for example, an edge computer or a cloud server, etc.).

[0120] 〔Supplementary Notes〕 The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims. Embodiments obtained by appropriately combining the technical means disclosed in the above description are also included in the technical scope of the present invention.

Explanation of Reference Numerals

[0121] 1 Management system 10 Management server 30 Communication terminal 111 Reception section 112 Registration section 113 Update section 114 Transmission data creation section 201 Map data 202 Water transportation facility data 203 Offset information data 204 Management data 231, FA1, FA2 Graphic information 232, AA1, AA2, AF1, AF2 Graphic attribute information 341 Application execution section 351 Application data LA1, LA2, LF1, LF2 Line graphics OA1 First offset information data OA2 Second offset information data Pa1, Pa2 Survey points

Claims

1. A management method for managing offset information regarding the location of transportation facilities buried underground on a geographic information system, comprising: The offset information includes: (i) a first facility point corresponding to a characteristic part of the transportation facility; (ii) a first terrain point corresponding to a characteristic location in the map data in the geographic information system, which is used to identify the location of the first facility point and is located near the first facility point; and (iii) a first graphic shape connecting the first facility point and the first terrain point, and includes first graphic information; A management method, comprising first graphic attribute information associated with the first graphic shape and including information on the actually measured distance between the first facility point and the first terrain point.

2. The geographic information system includes facility data including attribute information and location information of the transportation facility, The management method according to claim 1, wherein on the geographic information system, the first facility point in the first graphic information and the facility point in the facility data corresponding to the first facility point are linked by coordinates.

3. The management method according to claim 1, wherein the first graphic attribute information includes information on the measurement date of the distance.

4. The management method according to claim 1, wherein the first graphic attribute information includes information on the registration type of the offset information, which is selected from a plurality of preset registration types regarding the reason for registering the offset information.

5. The management method according to claim 1, wherein based on the first graphic information, the first facility point, the first terrain point, and the first graphic shape are displayed on the geographic information system.

6. The offset information includes: Location information of a second terrain point different from the first terrain point, corresponding to a characteristic location in the map data in the geographic information system, which is located near the first facility point, and a second graphic shape connecting the first facility point and the second terrain point, and includes second graphic information; Second graphic attribute information associated with the second graphic shape and including information on the actually measured distance between the first facility point and the second terrain point; and The management method according to claim 2, wherein on the geographic information system, the first facility point in the second graphic information and the facility point in the facility data corresponding to the first facility point are linked by coordinates.

7. A management device for managing offset information regarding the location of a transportation facility buried underground on a geographic information system, comprising: The offset information includes: (i) position information of a first facility point corresponding to a characteristic part of the transportation facility; (ii) position information of a first terrain point corresponding to a characteristic location in the map data of the geographic information system that is used to identify the position of the first facility point and is located near the first facility point; and (iii) a first graphic shape connecting the first facility point and the first terrain point, and including first graphic information; first graphic attribute information associated with the first graphic shape and including information on the actually measured distance between the first facility point and the first terrain point; a reception unit that receives registration of the offset information to the geographic information system; a data creation unit that creates display data for displaying the offset information on the geographic information system. A management device comprising the above.

8. A management system comprising the management device according to Claim 7 and a communication terminal capable of communicating with the management device and capable of executing the geographic information system, wherein the offset information is displayed on the geographic information system executed on the communication terminal based on the display data transmitted from the management device to the communication terminal.

9. A program characterized by causing a computer to function as each part in the management device according to Claim 7.

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