Management device, control method for the management device, and management program

Abstract

This paper presents the temporal changes in the installation status of water transport facilities using a simple method. [Solution] The management device (1) includes a determination unit (143) that determines the display mode of the structure at the time of display by comparing the time of installation indicated by the installation information acquired by the first acquisition unit (141) or the time of removal indicated by the removal information with the time of display target indicated by the target time information acquired by the second acquisition unit (142), and a display control unit (144) that displays the installation status of the structure at the time of display target on the display unit (12) based on the display mode determined by the determination unit.

Description

Technical Field

[0001] The present disclosure relates to a management device and the like.

Background Art

[0002] Patent Document 1 discloses a system for assisting in the proper maintenance management and formulation of renewal plans for water and sewage works. The system of Patent Document 1 stores facility information, inspection / maintenance information, plant information, failure information, soundness evaluation information, deterioration diagnosis information, and cost information in a database, and executes processing for assisting in the formulation.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the technique of Patent Document 1 does not disclose displaying a pipeline diagram based on information regarding facilities and equipment.

[0005] One aspect of the present disclosure aims to realize an information management device capable of presenting changes over time in the layout state of water transportation facilities by an easy method.

Means for Solving the Problems

[0006] A management device according to one aspect of the present disclosure is a management device for managing pipelines on a geographic information system, comprising: a first acquisition unit that acquires, as structural information relating to a structure constituting the pipeline, at least one of installation time information indicating the time of installation of the structure and removal time information indicating the time of removal of the structure; a second acquisition unit that acquires target time information indicating a time to display the installation state of the structure; a determination unit that determines the display manner of the structure at the time to display by comparing the installation time indicated by the installation time information or the removal time indicated by the removal time information acquired by the first acquisition unit with the time to display indicated by the target time information acquired by the second acquisition unit; and a display control unit that displays the installation state of the structure at the time to display on a display unit based on the display manner determined by the determination unit.

[0007] A control method for a management device according to one aspect of the present disclosure is a control method for a management device that manages pipelines on a geographic information system, comprising: a first acquisition step of acquiring at least one of the following as structural information relating to a structure constituting the pipeline: installation time information indicating the time of installation of the structure and removal time information indicating the time of removal of the structure; a second acquisition step of acquiring target time information indicating a time to be displayed for the installation state of the structure; a determination step of determining the display manner of the structure at the time to be displayed by comparing the installation time indicated by the installation time information or the removal time indicated by the removal time information acquired in the first acquisition step with the time to be displayed indicated by the target time information acquired in the second acquisition step; and a display control step of displaying the installation state of the structure at the time to be displayed on a display unit based on the display manner determined in the determination step. [Effects of the Invention]

[0008] According to one aspect of this disclosure, the changes in the installation state of a structure over time can be presented in an easy manner. [Brief explanation of the drawing]

[0009] [Figure 1] This is a block diagram showing an example of the configuration of a control device according to the embodiment of this disclosure. [Figure 2] This is a diagram showing an example of a map image. [Figure 3] This figure shows an example of a period acceptance area. [Figure 4] This figure shows an example of a data structure for structural information. [Figure 5] This is a diagram showing an example of a map image. [Figure 6] This is a diagram showing an example of a map image. [Figure 7] This flowchart shows an example of the processing flow by the control unit. [Modes for carrying out the invention]

[0010] [Configuration of Control Device 1] Figure 1 is a block diagram showing an example of the configuration of the management device 1 according to this embodiment. The management device 1 is a device that manages pipelines on a Geographic Information System (GIS), and may be, for example, a PC (Personal Computer), or a mobile information terminal such as a smartphone or tablet.

[0011] Examples of pipelines managed by the control device 1 include waterways such as aqueducts, water transport facilities such as aqueduct bridges, and tunnels. Examples of structures that make up pipelines managed by the control device 1 include various equipment such as pipes, valves, and plugs. Examples of pipes managed by the control device 1 include water supply pipes, drainage pipes, gas pipes, electrical conduits, telephone conduits, piping through which LAN (Local Area Network) cables are carried, and ducts. The pipes managed by the control device 1 are linear structures with cross-sections such as circular, rectangular, horseshoe-shaped, trapezoidal, or oval.

[0012] As shown in Figure 1, the management device 1 includes, for example, a reception unit 11, a display unit 12, a storage unit 13, and a control unit 14.

[0013] <Configuration of the reception unit, display unit, and storage unit> The reception unit 11 receives various input operations. The reception unit 11 is an operation unit operable by a user, for example, a mouse, a keyboard, or a touch panel.

[0014] The reception unit 11 receives input operations for various information displayed on the geographic information system. The reception unit 11 receives, for example, target time information indicating a display target time for the layout state of a structure to be a display target. In the present embodiment, the reception unit 11 receives the target time information by receiving an input operation for a period reception area 200 (see FIG. 2) included in a map image showing a map in the geographic information system. That is, the reception unit 11 receives the target time information indicating the display target time specified by the user.

[0015] FIG. 2 is a diagram showing an example of a map image showing a map in the geographic information system. As shown in FIG. 2, the map image is an image including, for example, topographic map information including roads or rivers provided by the Geospatial Information Authority of Japan or a vendor, and a diagram of a structure laid by a business entity or the like.

[0016] FIG. 3 is a diagram showing an example of the period reception area 200. As shown by reference numeral 501 in FIG. 3, the period reception area 200 includes a period designation bar 201 and a period selection box 202.

[0017] The period reception area 200 may include either the period designation bar 201 or the period selection box 202. The period designation bar 201 is a bar that enables selection of a display target time for displaying the map image. The display target time is specified by receiving an input operation for moving a knob 201a along the period designation bar 201. In the example of reference numeral 501, the year 1990 is specified as the display target time. In this case, a map image showing the layout state of the structure in 1990 is displayed on the display unit 12.

[0018] In this embodiment, when it comes to the display target time, it indicates the "year" when the user desires to display the map image, but it may also be any point in time (e.g., year, month, and day, etc.) or period (e.g., annual unit from January to December, or monthly unit, etc.). That is, the display target time is a concept that can include the display target period. Also, the specified display target time may be displayed in the period selection box 202.

[0019] Also, as shown by reference numeral 502 in FIG. 3, the period selection box 202 is a box that enables selection of the display target time for displaying the map image. By receiving an input operation on the pull-down button 202a of the period selection box 202, a plurality of display target times are displayed. In the example of reference numeral 502, an example of switching the display target time from 1990 to 2020 is shown. In this case, on the display unit 12, a map image showing the layout state of the structure in 2020, which is switched from the map image showing the layout state of the structure in 1990, is displayed.

[0020] Also, the reception unit 11 receives the installation time information indicating the installation time of the structure or the removal time information indicating the removal time of the structure. For example, when the user installs or updates the structure, the user inputs that time point as the installation time of the structure. The update of the structure means that when a part of the installed structure is removed and the other part (the remaining part) of the structure remains installed, the removed part of the structure is treated as removed, and the remaining part of the structure is managed as a new structure on the geographic information system. Also, for example, when the user determines the planned installation time of the structure, the user inputs that planned installation time as the installation time of the structure. Further, for example, when the user removes the structure, the user inputs that time point as the removal time of the structure. The installation time information and the removal time information may be information indicating any point in time (e.g., year, month, and day, etc.) or period (e.g., annual unit, annual unit from January to December, or monthly unit, etc.).

[0021] Furthermore, the reception unit 11 may receive remaining information indicating that the structure being installed is a remaining structure that is left in the ground without being removed.

[0022] The display unit 12 is a display screen that displays various types of information used in the geographic information system. For example, the display unit 12 displays a map image.

[0023] The memory unit 13 stores data necessary for control by the control unit 14. For example, the memory unit 13 stores the topographic map information and structural information related to structures. Furthermore, the memory unit 13 may also store programs for making the geographic information system function.

[0024] In this embodiment, the management device 1 includes a reception unit 11, a display unit 12, and a storage unit 13, but it does not need to include at least one of these components. Components that are not included in the management device 1 can function as external devices that are connected to the management device 1 in a communicative manner.

[0025] <Details of the information stored in the memory unit> Structural information includes, for example, the installation information and removal information described above. In addition, structural information may include, for example, attribute information indicating the attributes of the structure, the remaining information described above, and location information indicating the placement location of the structure shown on the geographic information system (e.g., latitude and longitude information). Attribute information includes, for example, information indicating the type of structure. If the structure is a pipe, attribute information includes, for example, type information indicating the type of pipe, diameter information indicating the diameter of the pipe, and extension information indicating the length of the pipe. Attribute information may also include, for example, information indicating the service life of the structure, information indicating the number of years elapsed since the structure was installed, and information indicating the remaining number of years the structure can remain installed ("service life" - "elapsed years").

[0026] Structure information is stored in the storage unit 13 in association with the management number (ID) assigned to the structure placed in the geographic information system. Figure 4 shows an example of the data structure of structure information. Reference numeral 511 in Figure 4 indicates an example of the data structure of structure information referenced by the control unit 14 when displaying the map image shown in Figure 5, and reference numeral 512 in Figure 4 indicates an example of the data structure of structure information referenced by the control unit 14 when displaying the map image shown in Figure 6.

[0027] The example in Figure 4 shows the data structure of structure information when the structure is a pipe. In the example in Figure 4, the management number is the pipe number, the installation information is the installation year, and the removal information is the removal year. The location information is (longitude, latitude), and "1" is set for structure information with residual information, and "0" is set for structure information without residual information. When the removal year of a structure is entered for structure information with residual information (structure information of a residual structure), the residual information for that structure is switched from "1" to "0". For other structures (e.g., valves and plugs), attribute information such as the type of structure and diameter may also be stored, for example, associated with the management number, along with the installation year information and the removal year information.

[0028] In this embodiment, structure information is stored on a yearly basis. Installation information is stored for structures that are installed in a given year, or structures that are scheduled to be installed in a given year. Therefore, installation information is not stored for structures that are not installed in a given year, or for structures that are not scheduled to be installed in a given year. Also, if a structure is installed in a given year but has not been removed, removal information is not stored. For example, in Figure 4, reference numeral 511 does not store removal information for management numbers P3 to P10. Thus, structure information may include, for example, installation information indicating the time of installation of a structure, and removal information indicating the time of removal of a structure.

[0029] Furthermore, in this embodiment, the installation and removal information received by the reception unit 11 is reflected in the structural information for the following fiscal year and beyond, from the time the structural structure is installed or removed. However, the structural information for a structural structure that has been decided as planned for installation may be incorporated into the fiscal year in which the decision was made.

[0030] In Figure 4, reference numeral 511 represents structural information corresponding to fiscal year 1990 (Heisei 2). The pipes corresponding to management numbers P1 and P2 were removed on March 31, 1990 (H2.3.31), meaning they were removed in the fiscal year preceding 1990. Therefore, the removal information "H2.3.31" (indicated by the dotted line) corresponding to management numbers P1 and P2 is reflected for the first time in the structural information for fiscal year 1990 shown by reference numeral 511.

[0031] Furthermore, the pipes corresponding to management numbers P9 and P10 (the solid-lined boxed portion) were laid on March 31, 1990 (H2.3.31), meaning these pipes were laid in the year preceding fiscal year 1990. In addition, the structural information corresponding to management number P8 (the solid-lined boxed portion) was re-entered (updated) as the remaining portion of the pipe corresponding to management number P1, which was removed in conjunction with the laying of the pipes corresponding to management numbers P9 and P10. Therefore, the structural information corresponding to management numbers P8 to P10 is information that is reflected for the first time in the structural information for fiscal year 1990, as shown in reference number 511.

[0032] In Figure 4, reference numeral 512 represents structural information corresponding to fiscal year 2020 (Reiwa 2). The pipes corresponding to management numbers P4 and P5 were removed on March 28, 2019 (H31.3.28), which is the year prior to fiscal year 2019 (Reiwa 1). Therefore, the removal information "H31.3.28" (enclosed by a dotted line) corresponding to management numbers P4 and P5 is reflected in the structural information for fiscal year 2020 shown in reference numeral 512. Also, the pipes corresponding to management numbers P11 and P12 (enclosed by a solid line) were laid on March 28, 2020 (R2.3.28), which is the year prior to fiscal year 2020 (Reiwa 2). Therefore, the structural information corresponding to management numbers P11 and P12 is reflected for the first time in the structural information for fiscal year 2020 shown in reference numeral 512. Furthermore, the planned installation date for the pipes corresponding to management numbers P13 and P14 (the area enclosed by the dashed-dot line) was determined to be March 31, 2028 ("R10.3.31"), and the structural information for these pipes was received by the reception department 11 within fiscal year 2020. Therefore, this structural information is reflected as the structural information corresponding to fiscal year 2020. The structural information for structures scheduled for removal may also be reflected in the same manner.

[0033] Furthermore, topographic map information and structural diagrams may each be stored as layers. For topographic map information, for example, layers may be stored for each terrain attribute, such as a layer showing road diagrams and a layer showing river diagrams. Also, a layer may be a collection of multiple tiles divided into predetermined sizes. In this case, the tiles may be prepared according to the scale at which the map image can be displayed.

[0034] Layer and tile information may be stored for each specified display time (in this embodiment, each fiscal year). The control unit 14 creates a set of tiles for each layer that corresponds to the specified display time and scale, and creates a map image for the specified display time by superimposing each layer.

[0035] Furthermore, the memory unit 13 may store, for example, measurement values ​​measured by measuring instruments installed on a structure, associated with the structure information. The memory unit 13 may also store measurement values ​​measured at regular intervals. Examples of measurement values ​​include the pressure and flow velocity values ​​of fluids flowing through a pipe. By specifying a date and time, the measurement values ​​corresponding to that date and time can be utilized on a geographic information system. For example, they can be used to recreate situations such as accidents.

[0036] <Configuration of the control unit> The control unit 14 comprehensively controls each part of the management device 1. The control unit 14 may also read programs stored in the storage unit 13 and activate the geographic information system.

[0037] The control unit 14 includes, for example, a first acquisition unit 141, a second acquisition unit 142, a determination unit 143, a display control unit 144, a calculation unit 145, and an aggregation unit 146.

[0038] The first acquisition unit 141 acquires structural information from the storage unit 13. The first acquisition unit 141 acquires at least one of the installation information and the removal information as structural information. In this embodiment, the first acquisition unit 141 may acquire all of the structural information stored in the storage unit 13 for each year (structural information for all years stored in the storage unit 13), or it may acquire the structural information for the year indicated by the target time information acquired by the second acquisition unit 142.

[0039] The second acquisition unit 142 acquires target time information indicating the time of display that has been received by the reception unit 11. In this embodiment, the second acquisition unit 142 acquires information indicating the year in which the user wishes to display the map image as target time information.

[0040] The determination unit 143 determines the display mode of the structure at the time of display by comparing the installation time indicated by the installation time information acquired by the first acquisition unit 141 or the removal time indicated by the removal time information with the display target time indicated by the target time information acquired by the second acquisition unit 142. In this embodiment, the determination unit 143 determines that the display mode of structures installed at the time of display is to be displayed, and the display mode of structures removed at the time of display is to be hidden.

[0041] Specifically, the determination unit 143 compares a predetermined arbitrary point in time within the fiscal year indicated by the target time information with the installation or removal time included in the structural information associated with that fiscal year. This arbitrary point in time can be changed as appropriate. The arbitrary point in time may be a year, a month, etc. In this case, the determination unit 143 may compare the installation or removal time as a year with the target time as a year, or it may compare the installation or removal time as a year and month with the target time as a year and month.

[0042] The determination unit 143 identifies structures whose removal time is before any point in the fiscal year indicated by the target time information as structures that have been removed at the time of display target, and determines that their display mode is hidden. For structures other than those identified as removed, if the installation time is before the aforementioned arbitrary point in time, the determination unit 143 identifies them as structures that have been installed at the time of display target, and determines that their display mode is displayed. On the other hand, for structures whose installation time is after the aforementioned arbitrary point in time (structures that are scheduled to be installed), the determination unit 143 identifies them as structures that have not been installed at the time of display target, and determines that their display mode is hidden.

[0043] Furthermore, for structures whose structural information includes residual information, the determination unit 143 determines the display mode of the structure to indicate that it is a residual structure.

[0044] The display control unit 144 displays the installation status of the structures at the time of display on the display unit 12 based on the display mode determined by the determination unit 143. In this embodiment, the display control unit 144 hides the identified structures that are not installed at the time of display and displays only the structures that are identified as being installed at the time of display.

[0045] Figures 5 and 6, like Figure 2, show examples of map images representing maps in a geographic information system. Figure 2 is an example of a map image from fiscal year 1989 (Heisei 1). Figure 5 is an example of a map image showing the same area and scale as the map shown in Figure 2, and is an example of a map image from fiscal year 1990. Figure 6 is an example of a map image showing the same area and scale as the map shown in Figure 2, and is an example of a map image from fiscal year 2020.

[0046] If the target time for display is fiscal year 1990, the determination unit 143 compares a predetermined arbitrary point in time within fiscal year 1990 (for example, April 1, 1990) with the removal time indicated by the removal information corresponding to fiscal year 1990. As shown by reference numeral 511 in Figure 4, removal information has been entered for management numbers P1 and P2, and their removal time is before the aforementioned arbitrary point in time. Therefore, the determination unit 143 identifies the pipes corresponding to management numbers P1 and P2 as pipes that were removed in fiscal year 1990 and determines that their display mode is hidden.

[0047] Furthermore, the determination unit 143 compares the above arbitrary point in time with the installation time indicated by the installation time information for management numbers P3 to P10, other than management numbers P1 and P2, among the installation time information corresponding to fiscal year 1990. As shown by reference numeral 511 in Figure 4, the installation time indicated by the installation time information for management numbers P3 to P10 is earlier than the above arbitrary point in time. Therefore, the determination unit 143 identifies the pipes corresponding to management numbers P3 to P10 as pipes that were installed in fiscal year 1990 and determines the display method to be used. In this embodiment, the display control unit 144 represents the pipes that were installed at the time of display (excluding pipes as remaining structures) with solid lines.

[0048] In Figure 2 (1989), the display control unit 144 displays the pipes corresponding to management numbers P1 and P2 on the display unit 12, but in Figure 5 (1990), it does not display them on the display unit 12. Instead, as shown in Figure 5, the display control unit 144 displays the pipes corresponding to management numbers P8 to P10. The locations marked with "×" in Figure 5 are where water leakage incidents occurred. Therefore, for the pipe corresponding to management number P1, only the section from where it was connected to the pipe corresponding to management number P2 to the water leakage location was removed, and the pipe corresponding to management number P10 was laid. The pipe corresponding to management number P8 shows the remaining portion of the pipe corresponding to management number P1. Note that the pipes corresponding to management numbers P3 to P7 were also laid in the previous fiscal year (1989) before 1990, so there is no change in the display in Figure 5 from the display in Figure 2.

[0049] Furthermore, in Figure 4, reference numeral 511 indicates that the structural information corresponding to management number P7 includes residual information (the residual information is set to "1"). Therefore, the determination unit 143 determines that, in displaying the map image for 1990, the pipe corresponding to management number P7 will be displayed in a manner that indicates it is a residual structure. Accordingly, in this embodiment, the display control unit 144 switches the display of the pipe corresponding to management number P7 from a solid line indicating the normal installation state in Figure 2 to a dashed-dotted line indicating it is a residual structure, as shown in Figure 5.

[0050] If the target time for display is fiscal year 2020, the determination unit 143 compares a predetermined arbitrary point in time within fiscal year 2020 (for example, April 1, 2020) with the removal time indicated by the removal information corresponding to fiscal year 2020. As shown by reference numeral 512 in Figure 4, removal information is entered for management numbers P4 and P5 in addition to management numbers P1 and P2, and their removal times are earlier than the aforementioned arbitrary point in time. Therefore, the determination unit 143 identifies the pipes corresponding to management numbers P4 and P5 in addition to management numbers P1 and P2 as pipes that were removed in fiscal year 2020, and determines that their display mode is hidden.

[0051] Furthermore, the determination unit 143 compares the above arbitrary point in time with the installation time indicated by the installation time information for management numbers P3, P6 to P14, excluding management numbers P1, P2, P4, and P5, among the installation time information corresponding to fiscal year 2020. As shown by reference numeral 512 in Figure 4, the installation time indicated by the installation time information for management numbers P3, P6 to P12 is earlier than the above arbitrary point in time. Therefore, the determination unit 143 identifies the pipes corresponding to management numbers P3, P6 to P12 as pipes that were installed in fiscal year 2020 and determines the display method as the display.

[0052] In Figure 5 (1990), the display control unit 144 displays the pipes corresponding to management numbers P4 and P5 on the display unit 12, but in Figure 6 (2020), it does not display them on the display unit 12. Instead, as shown in Figure 6, the display control unit 144 displays the pipes corresponding to management numbers P11 and P12. Since the pipes corresponding to management numbers P3, P6 to P10 have been continuously installed since 1990, there is no change in the display in Figure 6 from the display in Figure 5.

[0053] For the sake of simplicity of explanation, management numbers are shown in Figures 2, 5, and 6, but the display control unit 144 does not display management numbers in the map image. The display control unit 144 displays information about structures in association with the structures included in the map image. For example, as shown in Figures 2, 5, and 6, the display control unit 144 displays information indicating the type of structure, diameter, and installation date (e.g., installation date) in association with the structures included in the map image. Furthermore, if the display control unit 144 can display the same information for two or more consecutive structures, it may display that information together.

[0054] In Figure 2, code I11 represents information about the pipes corresponding to management numbers P1 and P2. Code I12 represents information about the pipe corresponding to management number P3. Code I13 represents information about the pipes corresponding to management numbers P4 and P5. Code I14 represents information about the pipe corresponding to management number P6. Code I15 represents information about the pipe corresponding to management number P7. Additionally, code I16 represents information about the valve connected to the pipe corresponding to management number P3.

[0055] In Figure 5, code I211 represents information about the pipe corresponding to management number P8. Since the pipe corresponding to management number P8 is the remainder of the pipe corresponding to management number P1, the information indicated by code I211 is the same as the information indicated by code I11. Code I212 represents information about the pipes corresponding to management numbers P9 and P10. Code I26 represents information about a valve newly connected to the pipe corresponding to management number P3 (connected on March 31, 1990). In Figure 6, code I33 represents information about the pipes corresponding to management numbers P11 and P12.

[0056] The display control unit 144 may display information regarding newly installed structures during target display in a display manner that indicates they have been newly installed. In the examples in Figures 5 and 6, the display control unit 144 displays information regarding newly installed structures during target display (information indicated by reference numerals 212 and I26 in Figure 5, and information indicated by reference numeral I33 in Figure 6) within a frame.

[0057] In this embodiment, the display control unit 144 displays information about the structure, such as the type of structure, diameter, and installation information, but is not limited to this. The display control unit 144 only needs to display information that can identify the displayed structure, which may be, for example, a part of this information or a management number.

[0058] Furthermore, in this embodiment, the display control unit 144 hides structures that have been removed when the target is displayed, but it may also display such structures in a display mode that indicates they have been removed. In this case, the determination unit 143 may determine the display mode for structures that have been removed when the target is displayed to be a display mode that indicates they have been removed.

[0059] For example, as shown in Figure 5, the display control unit 144 may display pipes that were removed in fiscal year 1990 (a portion of the pipes corresponding to management number P1, and the pipes corresponding to management number P2) in a display manner that allows them to be identified as installed pipes. Also, as shown in Figure 6, the display control unit 144 may display pipes that were removed in fiscal year 2020 (a portion of the pipes corresponding to management number P1, and the pipes corresponding to management numbers P2, P4, and P5) in a display manner that allows them to be identified as installed pipes. In the examples in Figures 5 and 6, the display control unit 144 displays the removed pipes with dotted lines.

[0060] Similarly, in this embodiment, the display control unit 144 hides structures that have been determined to be installed when displaying targets, but it may also display such structures in a display manner that indicates they are scheduled for installation. In this case, the determination unit 143 may determine the display manner for structures that have been determined to be installed when displaying targets to be a display manner that indicates they are scheduled for installation. The display control unit 144 may, for example, as shown in Figure 6, display pipes that have been determined to be installed in fiscal year 2020 (pipes corresponding to management numbers P13 and P14) in a display manner that can be identified as installed pipes (dotted lines in Figure 6).

[0061] Furthermore, if the pipes corresponding to management numbers P13 and P14 were actually laid on March 31, 2028, and the reception unit 11 receives information indicating that the pipes have been laid, the decision unit 143 will determine the display format of the pipes to indicate that they have been laid. Accordingly, when displaying the map image for fiscal year 2028, the display control unit 144 will switch the display of the pipes from an indication that they are scheduled to be laid (dotted line in this example) to an indication that they have been laid (solid line in this example).

[0062] In Figures 5 and 6, both the removed structures and the structures scheduled for installation are shown with dotted lines. However, the display method for these structures may also be determined in a way that allows for identification. In other words, different display methods may be set for installed structures, removed structures, and structures scheduled for installation. In the above explanation, it was stated that the remaining structures among the installed structures are displayed in a different way from the other structures, but this is not limited to this, and they may be displayed in the same way. Also, solid lines, dotted lines, and dashed lines are examples of display methods.

[0063] The memory unit 13 stores information indicating the display mode set according to the installation state of the structure, and the determination unit 143 determines the display mode for each structure based on the corresponding structure information when it is a target for display.

[0064] Furthermore, when displaying structures that have been removed at the time of display, the display control unit 144 may display information related to those structures in association with them. For example, in Figure 5, the display control unit 144 displays the information indicated by code I11 corresponding to management numbers P1 and P2, and in Figure 6, in addition to the information indicated by code I11, it displays the information indicated by code I13 corresponding to management numbers P4 and P5. Similarly, when displaying structures that have been decided as planned for installation at the time of display, the display control unit 144 may display information related to those structures in association with them. For example, in Figure 6, the display control unit 144 displays the information indicated by codes I34 and I35 corresponding to management numbers P13 and P14.

[0065] In this embodiment, as shown in Figures 5 and 6, the display modes for information regarding structures that have been removed and structures that have been decided to be installed are set to be distinguishable from the information regarding installed structures, similar to the display modes for structures. Note that different display modes may be set for information regarding structures that have been removed and information regarding structures that have been decided to be installed, so that they can be distinguished from each other.

[0066] The calculation unit 145 calculates the progress rate of pipeline construction at the time of display, which shows the change in the laying state of the structure at the time of display relative to the planned laying state of the structure at the time of display, based on the laying information, removal information, location information, and extension information. In this embodiment, the storage unit 13 stores structure information (hereinafter referred to as planning information) that shows the laying state of the structure planned for each year. The calculation unit 145 may calculate the above progress rate by performing, for example, the following calculation process.

[0067] For example, the calculation unit 145 identifies the length of pipes scheduled to be removed at the time of display for each location of the structure by comparing the time of display with the time of removal indicated in the removal information in the planning information at the time of display. Similarly, the calculation unit 145 identifies the length of pipes actually removed at the time of display for each location of the structure by comparing the time of display with the time of removal indicated in the removal information in the structure information at the time of display. Then, for each location, the calculation unit 145 calculates the ratio of the length of pipes actually removed at the time of display to the length of pipes scheduled to be removed at the time of display as the progress rate.

[0068] For example, the calculation unit 145 identifies the length of pipes that are planned to be laid at the time of display for each location of the structure by comparing the time of display with the time of laying indicated in the laying information in the planning information at the time of display. Similarly, the calculation unit 145 identifies the length of pipes that are actually laid at the time of display for each location of the structure by comparing the time of display with the time of laying indicated in the laying information in the structure information at the time of display. Note that the laying information here refers to the laying information for pipes other than those that have been removed at the time of display. The calculation unit 145 then calculates the ratio of the length of pipes actually laid at the time of display to the length of pipes that are planned to be laid at the time of display for each location as the progress rate.

[0069] The calculation unit 145 may calculate not only the progress rate for each location, but also the progress rate for the total length of pipes that have been removed at the time of display, or the progress rate for the total length of pipes that have been laid at the time of display. Furthermore, the calculation unit 145 may calculate the progress rate for the total length of pipes that have been removed and laid at the time of display.

[0070] Furthermore, the calculation unit 145 may calculate the degree of agreement between the structure in the map image created based on the plan information and the structure in the map image created based on the structure information as the progress rate.

[0071] The aggregation unit 146 aggregates the total length of structures that are installed at the time of display, or the total length of structures that have been removed at the time of display, based on the extension information. For example, the aggregation unit 146 aggregates the total length of pipes that have actually been removed at the time of display by comparing the time of display with the time of removal indicated by the removal information in the structure information at the time of display. The aggregation unit 146 also aggregates the total length of pipes that have actually been installed at the time of display by comparing the time of display with the time of installation indicated by the installation information in the structure information at the time of display. Note that the installation information here refers to the installation information for pipes other than those that have been removed at the time of display.

[0072] [Processing Flow] Figure 7 is a flowchart showing an example of the processing flow by the control unit 14. The processing flow shown in Figure 7 is an example of the control method for the management device 1.

[0073] When the control unit 14 receives a display instruction for a map image in the geographic information system (S11), the first acquisition unit 141 acquires structure information stored in the storage unit 13. Specifically, the first acquisition unit 141 acquires at least one of the installation information and the removal information as structure information (S12: first acquisition step).

[0074] Next, the second acquisition unit 142 acquires target time information indicating the time period for which the display is to be made (S13: second acquisition step). In this embodiment, based on the input operation to the period reception area 200, the second acquisition unit 142 acquires information indicating the year in which the user wishes to display the map image as target time information.

[0075] Note that the processing in S12 and the processing in S13 may be performed in parallel or in reverse order. The first acquisition unit 141 acquires all of the structure information stored in the storage unit 13, but if the processing in S13 is performed prior to the processing in S12, the first acquisition unit 141 may acquire only the structure information for the year indicated by the target time information acquired by the second acquisition unit 142.

[0076] Next, the determination unit 143 compares the installation time indicated by the installation time information acquired in S11 or the removal time indicated by the removal time information with the display target time indicated by the target time information acquired in S12. Based on this, the determination unit 143 determines the display manner of the structure at the display target time. If the first acquisition unit 141 has acquired all the structure information stored in the storage unit 13, the second acquisition unit 142 identifies the structure information corresponding to the display target time (year in this embodiment) indicated by the target time information acquired.

[0077] In this embodiment, the determination unit 143 determines that the display mode for structures that are installed at the time of display is to be displayed, and the display mode for structures that have been removed at the time of display is to be hidden (S14: determination step). However, the determination unit 143 may also determine that the display mode for removed structures is to be displayed. In this case, the determination unit 143 determines the display modes for these structures so that the installed structures and the removed structures can be distinguished.

[0078] Next, the display control unit 144 displays the installation status of the structure at the time of display on the display unit 12 based on the display mode determined in S14 (S15: display control step). In this way, the control unit 14 can easily display the installation status of the structure at the time of display simply by receiving time information indicating the time of display specified by the user. Furthermore, each time the control unit 14 acquires time information in S13, it can switch and display the installation status of the structure at the time of display indicated by the time information. Therefore, the user can easily compare the installation status of the structure for each time of display using a simple method. In this embodiment, the user can easily switch the display of the installation status of the structure at the time of display simply by performing input operations (e.g., mouse operations) on the period reception area 200 while looking at the display unit 12.

[0079] [Effects of the control device] Conventional management systems using geographic information systems can display the latest map images, including water transport facilities. However, these systems lack the functionality to display the past installation status of structures by specifying any point in the past; that is, they lack the ability to display the installation status of structures chronologically. Therefore, conventional management systems cannot display the current installation status of structures in a comparable manner with the installation status of structures in the past. As a result, users cannot perform maintenance and renewal planning tasks while understanding the past installation status of structures, requiring cumbersome work.

[0080] Conventional management devices only store the latest structural information (e.g., current year's structural information) and do not store information about past structural structures. However, information about past structural structures may be stored as backup data on a separate device, usually disconnected from the conventional management device. Even in this case, however, if the conventional management device needs to display the installation status of past structural structures based on this information, it is necessary to manually restore the information from the backup device in an environment separate from the environment in which the conventional management device is used. This requires time and expense.

[0081] Furthermore, it is required to utilize information from geographic information systems (GIPs) for purposes such as maintenance and renewal planning of structures, accident management (including accident analysis) for water leakage incidents, information management regarding inspections of structures (equipment inspections), and progress management of work such as the installation or removal of structures. To utilize this information, it is necessary to properly manage the entire process from the installation to the removal of structures on the GIP. However, conventional management systems did not manage and display information in a chronological order, making it difficult to properly perform this management.

[0082] Furthermore, the installation or removal of structures may be carried out unscheduled due to work progress or accidents. In order for conventional management systems to reflect this unscheduled work in the display of the structure's installation status, it was necessary to completely regenerate the structure information stored in the conventional management system. In the structure renewal planning work, renewal plans are formulated based on the structure information, but if the entire structure information is changed, the renewal plan also had to be redone from scratch.

[0083] Furthermore, the chronological management of structural information is carried out in a ledger (ledger management). However, ledger management alone made it difficult to visually grasp the status of the installation and removal of structures (including route changes).

[0084] In this embodiment, the management device 1 compares the installation time indicated by the installation information with the specified display target time. The management device 1 also compares the removal time indicated by the removal information with the specified display target time. Based on this comparison result, the management device 1 displays the installation status of the structure at the display target time.

[0085] Therefore, the management device 1 can switch and display the installation status of the structure for each specified display period. Thus, the management device 1 can present the changes in the installation status of the structure over time in an easy manner. As a result, users can easily grasp not only the current but also the past installation status of the structure through map images. Furthermore, users can perform maintenance and renewal planning tasks while easily understanding the changes in the installation status of the structure over time. Consequently, it becomes possible to improve the efficiency of these tasks.

[0086] Furthermore, the storage unit 13 can manage the structure information over time. Therefore, the management device 1 can display the installation status of the structure for each specified display target time while reducing the possibility of the effort and cost incurred for such management. In addition, the management device 1 can appropriately manage the structure from installation to removal on the geographic information system. Moreover, the management device 1 can modify the structure information as needed by receiving information such as installation and removal times. Therefore, it is not necessary to regenerate the entire structure information every time there is a change in the installation status of the structure.

[0087] [Variation] In this embodiment, an example has been described in which structural information is stored for each fiscal year and the installation status of the structural elements is displayed for each specified fiscal year, but the embodiment is not limited to this example.

[0088] For example, structural information may be stored for each date and time entered as installation and removal, as well as for each date and time when "1" is set as remaining information. In this case, for example, the determination unit 143 identifies the structural information stored in association with the date and time closest to the display target time, which is prior to the display target time indicated by the acquired target time information. The determination unit 143 then determines the display form of the structure at the display target time by comparing the display target time with the removal time indicated by the removal time information included in the structural information, and / or the installation time indicated by the installation time information included in the structural information.

[0089] Furthermore, the structural information may be stored on an annual basis, and the installation status of the structural information may be displayed at specified annual intervals, or the structural information may be stored on a monthly basis, and the installation status of the structural information may be displayed at specified monthly intervals. In other words, the structural information may be stored at predetermined intervals, and the installation status of the structural information may be displayed at said intervals.

[0090] Furthermore, if multiple time-sensitive information is received, the display control unit 144 may display the installation status of the structures corresponding to each time-sensitive information on a single screen (simultaneously). In other words, the display control unit 144 can display the installation status of the structures for multiple display time-sensitive events in a way that allows the user to compare them. This makes it easier to compare each installation status, which increases the likelihood of further improving the aforementioned work efficiency.

[0091] In addition, the system can store information about structures that have been decided as planned for installation (renovation plan data), so this information can be used for renovation planning work.

[0092] [Examples of implementation using software] The functions of the management device 1 (hereinafter referred to as "the device") are programs that cause the device to function as a computer, and these programs can be realized by programs that cause each control block of the device (especially each part included in the control unit 14) to function as a computer.

[0093] In this case, the device includes a computer having at least one control device (e.g., a processor) and at least one storage device (e.g., memory) as hardware for executing the program. By executing the program using this control device and storage device, the functions described in each of the embodiments are realized.

[0094] The above program may be recorded on one or more computer-readable recording media, not temporary ones. These recording media may or may not be provided by the above device. In the latter case, the program may be supplied to the above device via any wired or wireless transmission medium.

[0095] Furthermore, some or all of the functions of each of the above control blocks can also be implemented by logic circuits. For example, an integrated circuit in which logic circuits functioning as each of the above control blocks are formed is also included in the scope of this disclosure. In addition, it is also possible to implement the functions of each of the above control blocks by, for example, a quantum computer.

[0096] Furthermore, each process described in the above embodiments may be performed by AI (Artificial Intelligence). In this case, the AI ​​may operate on the control device described above, or it may operate on other devices (for example, an edge computer or a cloud server).

[0097] 〔summary〕 A management device according to Embodiment 1 of the present disclosure is a management device for managing pipelines on a geographic information system, comprising: a first acquisition unit that acquires, as structural information relating to a structure constituting the pipeline, at least one of installation time information indicating the time of installation of the structure and removal time information indicating the time of removal of the structure; a second acquisition unit that acquires target time information indicating a time to display the installation state of the structure; a determination unit that determines the display configuration of the structure at the time to display by comparing the installation time indicated by the installation time information or the removal time indicated by the removal time information acquired by the first acquisition unit with the target time indicated by the target time information acquired by the second acquisition unit; and a display control unit that displays the installation state of the structure at the time to display on a display unit based on the display configuration determined by the determination unit.

[0098] According to the above configuration, the management device displays the installation status of the structure at a given time based on a display mode that corresponds to the result of comparing the time of display target with the time of installation or removal of the structure. Therefore, the management device can switch and display the installation status of the structure according to the time of display target indicated by the acquired time information. Thus, the management device can present the changes in the installation status of the structure over time in an easy manner.

[0099] In the management device according to Embodiment 2 of this disclosure, in Embodiment 1, the determination unit determines that the display mode of a structure that is installed at the time of the display target is to be displayed, and the display mode of a structure that has been removed at the time of the display target is to be hidden.

[0100] With the above configuration, the management device can display only the installed structures for each time period indicated by the acquired time information.

[0101] In the management device according to aspect 3 of the present disclosure, in aspect 1 or 2, for structures whose structural information includes residual information indicating that they are residual structures left in the ground without being removed, the determination unit determines the display mode of the structure to a display mode indicating that it is a residual structure.

[0102] With the above configuration, the management device can display residual structures—structures that should have been removed at the time of display but were left underground—in a way that distinguishes them from structures that should be installed at the time of display. Therefore, users can recognize residual structures, reducing the possibility of overlooking them. Consequently, assets can be managed appropriately, and replacement plans can be formulated appropriately.

[0103] The management device according to Embodiment 4 of the present disclosure, in any one of Embodiments 1 to 3, includes a calculation unit that calculates the progress rate of pipeline construction at the time of display, which shows the change in the laying state of the structure at the time of display relative to the laying state of the structure planned as the laying state at the time of display, based on the laying information, the removal information, the location information and the extension information.

[0104] With the above configuration, users can understand the progress rate of pipeline construction at the time of display. Therefore, users can manage the progress of pipeline construction and formulate appropriate renewal plans.

[0105] The management device according to Embodiment 5 of the present disclosure, in any one of Embodiments 1 to 4, includes an aggregation unit that aggregates the total length of structures installed at the time of display, or the total length of structures removed at the time of display, based on the extension information, in the structure information, which includes extension information, extension information, extension information, which includes an aggregation unit that aggregates the total length of structures installed at the time of display, or the total length of structures removed at the time of display.

[0106] With the above configuration, users can manage their assets properly.

[0107] A control method for a management device according to aspect 6 of the present disclosure is a control method for a management device that manages pipelines on a geographic information system, comprising: a first acquisition step of acquiring at least one of the following as structural information relating to a structure constituting the pipeline: installation time information indicating the time of installation of the structure and removal time information indicating the time of removal of the structure; a second acquisition step of acquiring target time information indicating a time to be displayed for the installation state of the structure; a determination step of determining the display manner of the structure at the time to be displayed by comparing the installation time indicated by the installation time information or the removal time indicated by the removal time information acquired in the first acquisition step with the time to be displayed indicated by the target time information acquired in the second acquisition step; and a display control step of displaying the installation state of the structure at the time to be displayed on a display unit based on the display manner determined in the determination step.

[0108] According to the method described above, similar to the management device according to Embodiment 1, it is possible to present the changes in the installation state of the structure over time in an easy manner.

[0109] The pipeline program according to aspect 7 of this disclosure is a management program for causing a computer to function as the management device described in aspect 1, and is a management program for causing the computer to function as the first acquisition unit, the second acquisition unit, the determination unit, and the display control unit. Furthermore, the management device according to each aspect of this disclosure may be implemented by a computer, in which case the management program for the management device that implements the management device by causing the computer to operate as each part (software element) of the management device, and a computer-readable recording medium on which the program is recorded, also fall within the scope of this disclosure.

[0110] According to the program described above, similar to the management device in Embodiment 1, it is possible to present the changes in the installation status of the structure over time in an easy manner.

[0111] [Additional Notes] This disclosure is not limited to the embodiments described above, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of this disclosure. [Explanation of Symbols]

[0112] 1 Management device 12 Display section 141 First acquisition part 142 Second Acquisition Department 143 Decision Section 144 Display Control Unit 145 Calculation Section 146 Aggregation Department

Claims

1. A management device for managing pipelines on a geographic information system, A first acquisition unit acquires, as structural information relating to the structure constituting the pipeline, at least one of the following: installation information indicating the time of installation of the structure, and removal information indicating the time of removal of the structure. A second acquisition unit acquires target time information indicating the time to be displayed for the installation state of the aforementioned structure, A determination unit determines the display configuration of the structure at the time of display by comparing the installation time indicated by the installation time information acquired by the first acquisition unit or the removal time indicated by the removal time information with the display target time indicated by the target time information acquired by the second acquisition unit. A management device comprising: a display control unit that displays the installation status of the structure at the time of display on the display unit based on the display mode determined by the determination unit.

2. The management device according to claim 1, wherein the determination unit determines that the display mode of a structure that is installed at the time of the display target is to be displayed, and the display mode of a structure that has been removed at the time of the display target is to be hidden.

3. With respect to a structure whose structural information includes residual information indicating that it is a residual structure left in the ground without being removed, the determination unit determines the display mode of the structure to a display mode indicating that it is a residual structure, as described in claim 1.

4. The structural information includes position information indicating the placement location of the structural and extension information indicating the extension of the pipe that constitutes the structural. The management device according to claim 1, comprising a calculation unit that calculates the progress rate of pipeline construction at the time of display, showing the change in the laying state of the structure at the time of display with respect to the laying state of the structure planned as the laying state at the time of display, based on the laying information, the removal information, the location information, and the extension information.

5. The aforementioned structural information includes extension information indicating the extension of the pipe which is the structural element. The management device according to claim 1, further comprising a summarization unit that, based on the extension information, summarizes the total length of structures installed at the time of display, or the total length of structures removed at the time of display.

6. A control method for a management device that manages pipelines on a geographic information system, A first acquisition step involves acquiring structural information relating to the structure constituting the pipeline, which includes at least one of the following: installation information indicating the time of installation of the structure, and removal information indicating the time of removal of the structure. A second acquisition step involves acquiring target time information that indicates the time to be displayed for the installation status of the aforementioned structure, A determination step in which the display configuration of the structure at the time of display is determined by comparing the time of installation indicated by the installation information obtained in the first acquisition step or the time of removal indicated by the removal information with the time of display target indicated by the target time information obtained in the second acquisition step, A control method for a management device, comprising: a display control step of displaying the installation status of the structure at the time of display based on the display mode determined in the determination step;

7. A management program for causing a computer to function as the management device described in claim 1, wherein the computer functions as the first acquisition unit, the second acquisition unit, the determination unit, and the display control unit.

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