KR102313872B1 - Apparatus and method for visualizing 3-dimensional object on mobile service system for underground spatial information integrated maps - Google Patents

Abstract

The present invention relates to an apparatus and a method for visualizing a three-dimensional spatial object of a mobile underground space integrated map management system for logging in to a three-dimensional spatial object visualization service, collecting a target location to be visualized and a purpose of using the visualization service, identifying objects included in a tile corresponding to the target location, identifying the object to be visualized among the objects included in the tile in consideration of a user's authority and the purpose of use, and visualizing three-dimensional terrain information and the identified object to be visualized.

Description

Method and apparatus for visualizing three-dimensional spatial object of an integrated underground map management system for mobile

The following embodiments relate to a technology for visualizing an object in an underground space using a mobile terminal.

As the number of underground safety accidents in downtown areas such as rupture of aging heat transport pipes increases, there is a need for rapid construction and three-dimensional visualization of maps that integrate underground spaces. An integrated underground map management system to meet these needs is being built for the purpose of use in various fields such as urban underground safety management and construction. In the underground space integrated map management system, underground facilities of water supply, sewerage, electricity, communication, gas, and heating, as well as underground structures of subways, underpasses, underground walkways, underground shopping malls, and underground parking lots, and boreholes, wells, and geological information are constructed/ management is required The construction and management of the previously built underground map is done by each institution, and data omissions and inaccuracy of survey data occurred in the process of computerizing paper documents. It is difficult and there is a problem that it is not possible to guarantee the up-to-dateness of newly buried facilities.

Currently, due to security issues, the underground space map requested by the field surveyor is printed and distributed, and after the survey is completed, the surveyed information is input/updated to the internal server, and then the printed underground map is discarded. Therefore, it is difficult to cope with the case of an update requiring promptness. In addition, excavation should be carried out by checking the underground facilities and underground structures existing at the current location in a three-dimensional form during surveying or burial. Since the existing system provides on-site support by printing on paper, only a two-dimensional map of the underground space is possible. Since this method relies on the skill level of the field surveyor, the accuracy of an experienced surveyor increases, but otherwise, the cost of performing multiple surveys to increase the accuracy is incurred.

Therefore, there is a need for a new underground space integrated map management system that can solve the above problems and a visualization technique using the same.

An object of the present invention is to provide a method for visualizing a 3D spatial object in consideration of the security of an integrated underground map management system for mobile.

A 3D spatial object visualization method according to an embodiment of the present invention includes: logging in to a 3D spatial object visualization service; collecting the target location to be visualized and the purpose of using the visualization service; identifying an object included in the tile corresponding to the target position; identifying an object to be visualized in consideration of the user's authority and the purpose of use among the objects included in the tile; and visualizing the 3D topographic information and the identified object to be visualized.

In this case, the checking of the object included in the tile corresponding to the target location may include: checking whether a tile corresponding to the current location or address exists in the underground space object table; if the tile exists, checking whether all objects corresponding to the tile exist in a database in the mobile terminal; if all objects of the tile exist, checking whether all objects are the latest versions; checking the permission start date and permission end date of the underground space object table if all objects of the tile are the latest versions; checking the dimension and permission authority of the underground space objects in the object file list table; and checking whether a current date is a date accessible to the tile through the permission start date and the permission end date, wherein the checking whether the current date is a date accessible to the tile includes: As a result of checking whether the date is accessible, if the date is accessible to the tile, the step of checking the object to be visualized may be performed.

In this case, the underground space object table may include an ID, tile location coordinates, an address, a permit start date, and a permit end date.

In this case, the object file list table may include an ID, an underground object name, a file name, a dimension, a permission authority, and a version.

In this case, the step of checking the object included in the tile corresponding to the target location includes, if the tile exists, checking whether all objects corresponding to the tile exist in the database in the mobile terminal. If the object does not exist, the object required for the 3D spatial object visualization service is requested and transmitted, and information on the newly transmitted object located in the underground space is stored in the underground space object table and the object file list table stored in the database. It may further include the step of

In this case, in the step of checking the objects included in the tile corresponding to the target location, if it is not the latest version as a result of checking whether all the objects are the latest version, the 3D spatial object visualization service needs to update the version. The method may further include the step of requesting and receiving an object, storing information about an object located in the newly transmitted underground space in the underground space object table and the object file list table stored in the database, and updating the version.

In this case, the permission right is one of read, update, and non-visible according to the measurement purpose, and the non-visible may be automatically changed when the permission end date has passed.

In this case, the step of visualizing the 3D topographic information and the confirmed object to be visualized may include visualizing the entire identified object to be visualized, or Among the objects, it is possible to partially visualize up to a preset distance from the essential object according to the purpose of use.

In this case, in the step of visualizing the 3D topographic information and the identified object to be visualized, the 3D topographic information and the identified object to be visualized may be visualized at a viewpoint requested by the user.

In this case, the 3D spatial object visualization method includes: generating and uploading field measurement data after field measurement work; and logging out of the 3D spatial object visualization service.

In this case, the field measurement data may include an ID, a survey date, location coordinates, an underground object name, a type of work, and whether to transmit.

An apparatus for visualizing a 3D spatial object according to an embodiment of the present invention includes: a communication unit communicating with a field support service server; a storage unit for storing object information; a login processing unit that logs in to the 3D spatial object visualization service; an information collection unit that collects the target location to be visualized and the purpose of using the visualization service; an object information management unit for checking an object included in the tile corresponding to the target location; and a 3D visualization unit configured to check an object to be visualized in consideration of a user's authority and purpose of use among the objects included in the tile, and visualize 3D topographic information and the checked object to be visualized.

In this case, the 3D visualization unit may visualize the entire identified object to be visualized according to the user's authority that can be confirmed during the login process, or preset from essential objects according to the purpose of use among the identified objects to be visualized. It can only be partially visualized up to the distance.

In this case, the 3D visualization unit may visualize the 3D topographic information and the identified object to be visualized at a viewpoint requested by the user.

In this case, the 3D spatial object visualization apparatus may further include an object information update unit that generates and uploads field measurement data after the field measurement operation.

In this case, the field measurement data may include an ID, a survey date, location coordinates, an underground object name, a type of work, and whether to transmit.

The present invention logs into a 3D spatial object visualization service, collects a target location to be visualized and a purpose of using the visualization service, identifies an object included in a tile corresponding to the target location, and selects an object included in the tile. To a method and apparatus for visualizing a 3D spatial object of a mobile underground integrated map management system that identifies an object to be visualized in consideration of a user's authority and the purpose of use, and visualizes 3D topographic information and the identified object to be visualized , it is possible to provide a 3D spatial object visualization of an underground map considering security even in the field using a mobile terminal to field workers.

1 is a view showing a schematic overall configuration of an integrated underground map management system for mobile of the present invention.
2 is a diagram showing the structure of data of an underground map managed by the integrated underground map management system for mobile of the present invention.
3 is a flowchart illustrating a 3D spatial object visualization process in the 3D spatial object visualization apparatus of the mobile underground integrated map management system of the present invention.
4 is a flowchart illustrating a process of confirming a 3D spatial object in the 3D spatial object visualization apparatus of the mobile underground integrated map management system of the present invention.
5 is a diagram showing the configuration of a 3D spatial object visualization apparatus of the integrated underground map management system for mobile according to the present invention.
6 is a diagram illustrating an example visualized by the 3D spatial object visualization apparatus of the integrated underground map management system for mobile of the present invention.
7 is a diagram illustrating an example in which the 3D spatial object of the system is fully visualized or partially visualized in the 3D spatial object visualization apparatus of the integrated underground map management system for mobile according to the present invention.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes may be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all modifications, equivalents and substitutes for the embodiments are included in the scope of the rights.

The terms used in the examples are used for description purposes only, and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

In addition, in the description with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In the description of the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is between each component. It will be understood that may also be "connected", "coupled" or "connected".

Components included in one embodiment and components having a common function will be described using the same names in other embodiments. Unless otherwise stated, a description described in one embodiment may be applied to another embodiment, and a detailed description in the overlapping range will be omitted.

Hereinafter, a method and apparatus for visualizing a 3D spatial object of an integrated underground map management system for mobile according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7 .

1 is a view showing a schematic overall configuration of an integrated underground map management system for mobile of the present invention.

1, the integrated underground map management system for mobile includes an integrated underground map management system 100, an integrated underground map application server for mobile 120, an integrated underground map DB server for mobile 140, and the field. It may include a support service device 150 , a database 160 , a field utilization system 170 , and a field data reflection server 180 .

When the underground space integrated map management system 100 requests topographical and 3D spatial data for surveying or excavation from the field utilization system 170 of the mobile terminal, the underground map service file 112 is transferred to the mobile underground integrated map application server. Send to (120).

Through the gITF conversion module 122 of the integrated underground map application server 120, the underground map service file 112 including the 2D map image and altitude data file in the form of a tile is converted into a glTF format, and the integrated underground map The file converted to the glTF format is compressed through the map compression module 124 of the application server 120 to generate a gITF type map 132 and provided to the mobile underground integrated map DB server 140 .

When the gITF type map 132 is received from the gITF tile providing module 142 of the mobile underground space integrated map DB server 140, the security/high-speed transmission module 144 performs security processing of the underground space information and then the field support service device Send to 150.

In the field support service device 150 for surveying and excavation, the gITF type map 132 received through the security / high-speed transmission module 152 is stored in the database 160, and the request processing / map cache module 154 is In the mobile terminal including the field utilization system 170, the integrated map of the underground space requested based on the current location information is provided and visualized through the secure high-speed transmission module 156, and the spatial information collected in the field is provided as a field support service. It is sent to the field data reflection server 180 through

The site data reflection server 180 stores the field collected data as a standard shp file in the underground space integrated map management system 110 through the standard DB conversion module 184 and the standard DB verification module 182 . In this case, the shp file indicates a file with an extension of shp.

The manager communicates with the manager UI providing unit 186 of the site data reflection server 180 through the manager UI 190, and issues a work order by specifying the location where the field surveyor will perform the work, the date of execution, the underground space object, etc. It performs tasks such as managing field investigators, requesting verification and reflection of collected field data, and inquiring history.

In the present invention, the geographic information is an image file in which a map is divided into tiles. Such geographic information is already public information as seen in navigation or map service systems. Therefore, since it is information that does not need to be deleted for security, it is preferably left on the mobile terminal. In order to express terrain information in 3D, a dem file with altitude information is required. In this case, the dem file indicates a file with the extension dem. Since this information is also public information, it is left on the mobile terminal. Since topographical information and altitude information are not information created, modified, or managed in the integrated underground map, only read permission is granted for permission.

For security, the spatial object data received from the server should be deleted from the mobile terminal after the work is completed or the permit period is over, but there is a possibility that field workers frequently perform the same work. The worker who constructs the water pipe will continue to work on the water pipe, and the worker related to the communication line will continue to work on the communication line. Therefore, it is possible to reduce the transmission load by using the existing data without retransmission according to location information, date, permission, etc. after having underground space data in the mobile terminal.

The permission permission for the underground space data can grant read permission and update permission. For example, if the work related to water supply is measurement, the water supply pipe is visualized in 3D, and the surrounding underground space objects are not visualized or expressed in 2D. The administrator decides whether to visualize other underground objects other than the underground objects to be measured. At this time, the water supply pipe to be measured can be updated, so the update permission is given and the remaining underground space objects are given read permission to prevent unexpected update work.

If the work on the underground space is excavation or burial, all objects in the underground space at the location are visualized in three dimensions. This is because, when excavating, underground objects may be damaged if they are not expressed as they are in reality. At this time, the permission permission grants update permission to the underground space object to work with, and grants read permission to the rest of the underground space object.

2 is a diagram showing the structure of data of an underground map managed by the integrated underground map management system for mobile of the present invention.

Referring to FIG. 2 , the entity-relationship model (ERD) of the integrated underground map management system 110 for mobile includes an underground spatial object table 210 , an object file list 220 , and a field measurement data table 230 . can be configured.

The underground spatial object table 210 manages tile information because transmission and visualization are performed in units of tiles. Tile ID consists of zoom level and image map coordinates. The tile location coordinates indicate where the tile is located within the entire map tile, and has the address of the location and the start date and end date of permission to work at that address.

The object file list 220 is a table for managing image maps and 3D object data files for actual visualization. ID indicates which tile the object belongs to in connection with the ID of the underground space object table. The underground space object name stores one of the water supply, sewerage, electricity, communication, gas, heating, subway, underpass, underground walkway, underground shopping mall, underground parking lot, common pit, borehole, well, and geology used in the underground space integrated map management system. do. The file designates the 3D data format file of the underground space object in the corresponding tile. The dimension is expressed in 3D in the case of a survey object, but in the case of an object that needs to be visualized according to the survey situation, it must be expressed in 2D, so it can have a two-dimensional or three-dimensional value. The permission attribute indicates whether the object is update allowed or read-only, preventing unexpected update of other objects. The version attribute is used to check whether the object data file stored in the mobile terminal is the latest version.

The field measurement data table 230 stores the corresponding information when there is an object modified by performing tasks such as surveying and burial. It is a table that records what work was done on which underground space object in which location. The ID uses a serial number because multiple updates can occur at the location, and the survey date stores the date when the update occurred. The type of work designates whether an update occurred during the survey or the creation of a new object due to burial. The transmitted object is transmitted to the integrated underground map management system through the standard DB conversion/verification process in the field data reflection server, so that the latest information can be transmitted when the object is requested in the future, and then the field data information in the mobile terminal is deleted.

Hereinafter, a method according to the present invention configured as described above will be described with reference to the drawings below.

3 is a flowchart illustrating a 3D spatial object visualization process in the 3D spatial object visualization apparatus of the mobile underground integrated map management system of the present invention.

Referring to FIG. 3 , the 3D spatial object visualization apparatus may be a mobile terminal as a representative example.

The 3D spatial object visualization apparatus logs in to the 3D spatial object visualization service ( 310 ).

Then, the 3D spatial object visualization apparatus collects the target position to be visualized and the purpose of use of the visualization service ( 320 ).

Then, the 3D spatial object visualization apparatus checks the object included in the tile corresponding to the target position ( 330 ).

Then, the 3D spatial object visualization apparatus identifies an object to be visualized in consideration of the user's authority and purpose of use among the objects included in the tile ( 340 ).

Then, the 3D spatial object visualization apparatus visualizes the 3D topographic information and the confirmed object to be visualized ( S350 ).

In step 350, when the 3D spatial object visualization apparatus visualizes the 3D topographic information and the identified object to be visualized, the 3D topographic information and the identified object to be visualized may be visualized at a viewpoint and size requested by the user. In addition, when the 3D spatial object visualization apparatus visualizes the 3D topographic information and the confirmed object to be visualized, according to the user's authority that can be confirmed in the login process in step 310, the entire identified object to be visualized is visualized, Among the identified objects to be visualized, it is possible to partially visualize up to a preset distance from an essential object according to the purpose of use.

Then, the 3D spatial object visualization apparatus visualizes the 3D topographic information and the underground space object ( 330 ).

Then, the 3D spatial object visualization device generates field measurement data after the field measurement operation and uploads it to the field support service device (360). In this case, the field measurement data may include an ID, a survey date, location coordinates, an underground space object name, a type of work, and whether to transmit.

Then, the 3D spatial object visualization apparatus may log out of the 3D spatial object visualization service ( 370 ).

4 is a flowchart illustrating a process of confirming a 3D spatial object in the 3D spatial object visualization apparatus of the mobile underground integrated map management system of the present invention.

Referring to FIG. 4 , the 3D spatial object visualization apparatus checks whether a tile corresponding to a target location exists in an underground spatial object table, and checks whether all objects corresponding to the tile exist ( 410 ). In this case, the underground space object table may include an ID, tile position coordinates, an address, a permit start date, and a permit end date. And, the target position may be a working position, a survey position, a current position of the operator, and the like.

As a result of checking in step 410, if all objects of the tile do not exist, the 3D spatial object visualization apparatus requests and receives an object required for the 3D spatial object visualization service (412), and the underground spatial object table and object file stored in the database The information about the newly transmitted underground space object is stored in the list table ( 414 ), and the process proceeds to step 430 .

As a result of checking in step 410, if all objects of the tile exist, the 3D space object visualization apparatus checks whether all objects are the latest versions (step 420).

As a result of checking in step 420, if all objects are not the latest version, the 3D spatial object visualization device requests and receives the object requiring version update from the 3D spatial object visualization service (422), and stores the subsurface object table and object file list The information about the newly transmitted subterranean object is stored in the table, the version is updated (424), and the process proceeds to step 430.

If all the objects of the tile in step 420 are the latest versions, or when all objects become the latest versions due to step 414 or 424, the 3D spatial object visualization device checks the permission start date and permission end date of the underground space object table (430) . In this case, the permit start date and permit end date are information set in consideration of the type of work and the duration of the work.

Then, the 3D spatial object visualization apparatus checks the dimension and permission authority of the underground space objects in the object file list table (430). At this time, the object file list table includes ID, underground space object name, file name, dimension, permission authority, and version. In addition, the permission authority is one of read, update, and non-visible according to the purpose of measurement, and the non-visible may be automatically changed when the expiration date of the permission is exceeded.

Then, the 3D spatial object visualization apparatus checks whether the current date is a date accessible to the tile ( 430 ).

As a result of checking in step 450, if the current date is not a date accessible to the tile, the 3D spatial object visualization apparatus terminates the visualization service. In this case, the 3D spatial object visualization apparatus may indicate to the user that the tile is not accessible date before the end.

If it is determined in step 450 that the current date is a date accessible to the tile, the 3D spatial object visualization apparatus proceeds to step 340 .

5 is a diagram showing the configuration of a 3D spatial object visualization apparatus of the integrated underground map management system for mobile according to the present invention.

Referring to FIG. 5 , the 3D spatial object visualization apparatus 500 may be configured as a mobile terminal, and includes a control unit 510 , a login processing unit 511 , an information collection unit 512 , an object information management unit 513 , 3 It may be configured to include a dimension visualization unit 514 , an object information update unit 515 , a communication unit 520 , and a storage unit 530 . At this time, the 3D spatial object visualization apparatus 500 corresponds to the field utilization system 170 of FIG. 1 , the communication unit 520 corresponds to the secure high-speed transmission module 172 of FIG. 1 , and the object information management unit 513 . corresponds to the mobile client module 174 of FIG. 1, the login processing unit 511, the information collection unit 512, the 3D visualization unit 514, and the object information update unit 515 are the accuracy improvement module / It may correspond to the field utilization module 176 .

The communication unit 520 is a communication interface device including a receiver and a transmitter, and the communication unit 570 transmits and receives data by wire or wirelessly. The communication unit 570 may communicate with the field support service device 150 . In this case, the communication unit 520 may proceed to encrypted communication performed by encrypting the communication between the field support service apparatus 150 .

The storage unit 530 may be a storage device including a flash memory, a hard disk drive, and the like. The storage unit 530 stores an operating system for controlling the overall operation of the 3D spatial object visualization apparatus 500, an application program, and data for storage, and also stores an underground space object table and an object file list table according to the present invention. And, it is possible to store field measurement data during field measurement. The storage unit 530 may encrypt and store the underground space object table, the object file list table, and the field measurement data when storing, and the encrypted underground space object table, the encrypted object file list table, and the encrypted field measurement data contain object information. Only the management unit 513 , the 3D visualization unit 514 , and the object information update unit 515 may enable decoding.

The login processing unit 511 receives the user's identification information and the user's password according to the user's request, and logs in to the 3D spatial object visualization service.

The information collection unit 512 collects the target location to be visualized and the purpose of using the visualization service from the user. The information collection unit 512 may also collect information on a target object to be worked on from the user. In this case, the collection method may be a user's input or a user's selection. And, the target position may be a working position, a survey position, a current position of the operator, and the like. And, the purpose of use is the purpose of using the visualization service, and may be, for example, the type of work on the underground space or the survey on the underground space.

The object information management unit 513 checks the object included in the tile corresponding to the target location.

In this case, the object is an object located in the underground space, and the object is an underpass, an underground walkway, a common area, a subway line, a subway station, an underground shopping mall, an underground parking lot, a sewage pipe, a power supply pipe, a natural gas pipe, a heat pipe, a communication line, a wide area water pipe, Water pipelines, etc.

More specifically, the object information management unit 513 checks whether a tile corresponding to the current location or address in the subsurface object table exists, and if the tile exists, checks whether all objects corresponding to the tile exist in the database in the mobile terminal, If all objects in the tile exist, check if all objects are the latest version Check the permission and permission, check whether the current date is the date that the tile can be accessed through the permission start date and the permission end date, and if the current date is the date that the tile is accessible Provides information about the object to be visualized with

In this case, the underground space object table may include an ID, tile position coordinates, an address, a permit start date, and a permit end date. In addition, the object file list table may include an ID, an underground object name, a file name, a dimension, a permission authority, and a version. At this time, the permission right is one of read, update, and non-visible depending on the purpose of measurement, and the non-visible can be changed automatically when the expiration date of the permission is exceeded.

When a tile exists, the object information management unit 513 checks whether all objects corresponding to the tile exist in the database in the mobile terminal. information on the object located in the underground space newly transmitted to the underground space object table and the object file list table stored in the database may be stored in the storage unit 530 .

As a result of checking that all objects are the latest versions, the object information management unit 513 requests the 3D spatial object visualization service for an object that needs to be updated and receives it, and receives the subterranean object table and object file stored in the database. Information on the object located in the underground space newly transmitted to the list table may be stored in the storage unit 530 and the version may be updated.

The 3D visualization unit 514 may identify an object to be visualized in consideration of the user's authority and purpose of use among the objects included in the tile, and may visualize 3D topographic information and the identified object to be visualized.

If the purpose of use is to check the status of a specific facility, for example, if the 3D visualization unit 514 is a worker of a water supply management organization, the user's authority can visualize only the water supply. In the field support service device, when a user requests a map, the information type of the underground facility and the underground structure to be provided to the user may be designated according to the user's authority of the user. The user can receive only the information about the objects of the underground facility permitted to him from the field support service device, and visualize it and output it on the screen.

That is, the 3D visualization unit 514 cannot visualize information about an object that is not received from the on-site support service device or provided by the object information management unit 513 but not provided for reasons such as user authority or purpose of use.

The 3D visualization unit 514 may visualize only the object selected by the user according to the user's selection from among the objects that the user has the authority to visualize. For example, if the type of object that the user has the authority to visualize is heat pipe, communication line, wide area constant pipe, water supply pipe, and the user selects only wide area constant pipe and water supply pipe, wide area constant pipe , only water supply pipelines can be visualized.

The 3D visualization unit 514 may visualize 3D topographic information and the confirmed object to be visualized at a viewpoint requested by the user, as in the example of FIG. 6 below.

6 is a diagram illustrating an example visualized by the 3D spatial object visualization apparatus of the integrated underground map management system for mobile of the present invention.

Referring to FIG. 6 , the 3D visualization unit 514 may visualize 3D topographic information and the confirmed object to be visualized at the viewpoint requested by the user.

610 is a result of visualizing the 3D topographic information and the identified object when the user's point of view is on the ground.

Reference numeral 620 is a result of visualizing the 3D topographic information and the confirmed object when the user's point of view is deeper than the confirmed object.

Reference numeral 630 is a result of visualizing the 3D topographic information and the identified object when the user's point of view is on the ground, and magnifying it according to the user's request.

640 is a result of visualizing 3D topographic information and a confirmed object when the user's point of view is on the ground, and is a result of providing the convenience of operation by displaying the user's current location.

The three-dimensional visualization unit 514 visualizes the entire identified object to be visualized as in the example of FIG. 7 below, or an essential object according to the purpose of use among the identified objects to be visualized, according to the user's authority that can be confirmed during the login process. It can be partially visualized up to a preset distance from .

7 is a diagram illustrating an example in which the 3D spatial object of the system is fully visualized or partially visualized in the 3D spatial object visualization apparatus of the integrated underground map management system for mobile according to the present invention.

Referring to FIG. 7 , the 3D visualization unit 514 may visualize the entire object to be visualized as shown in 710 , or up to a preset distance based on an essential object (indicated by a solid line) to be worked on as shown in 720 . It can also be visualized. In this case, the object indicated by the dotted line means the surrounding object, not the object to be worked on. The reason for this partial visualization is to minimize the leakage of information requiring security, such as information on power or communication lines.

Returning to the description of FIG. 5 , the object information update unit 515 generates field measurement data after the field measurement operation and uploads it to the field support service device 150 . In this case, the field measurement data may include an ID, a survey date, location coordinates, an underground space object name, a type of work, and whether to transmit.

The controller 510 may control the overall operation of the 3D spatial object visualization apparatus 500 . The control unit 510 may perform the functions of the login processing unit 511 , the information collection unit 512 , the object information management unit 513 , the 3D visualization unit 514 , and the object information update unit 515 . The control unit 510, the login processing unit 511, the information collection unit 512, the object information management unit 513, the 3D visualization unit 514, and the object information update unit 515 are shown separately to distinguish each function. in order to explain Accordingly, the control unit 510 is configured to perform the respective functions of the login processing unit 511 , the information collection unit 512 , the object information management unit 513 , the 3D visualization unit 514 , and the object information update unit 515 . ) may include at least one processor. In addition, the control unit 510 performs some of the functions of the login processing unit 511 , the information collection unit 512 , the object information management unit 513 , the 3D visualization unit 514 , and the object information update unit 515 , respectively. It may include at least one processor configured.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer readable medium may store program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and carry out program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

The software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or device, to be interpreted by or to provide instructions or data to the processing device. , or may be permanently or temporarily embody in a transmitted signal wave. The software may be distributed over networked computer systems, and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

As described above, although the embodiments have been described with reference to the limited drawings, those skilled in the art may apply various technical modifications and variations based on the above. For example, the described techniques are performed in a different order than the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

100: underground space integrated map management system
112: underground map service file
120: mobile underground space integrated map application server
122: gITF changed module
124: map compression module
132: gITF tilemap
140: mobile underground space integrated map DB server
142: gITF tile provision module
144: security / high-speed transmission module
150: field support service device
152: security / high-speed transmission module
154: request processing / map cache module
156: secure high-speed transmission module
160: database
170: field use system
172: secure high-speed transmission module
174: mobile client module
176: Accuracy improvement module/field application module
180: field data reflection server
182: standard DB detection module
184: standard DB conversion module
186: Admin UI provider
190: Admin UI

Claims (16)

A method for visualizing a three-dimensional space object in a three-dimensional space object visualization apparatus, the method comprising:
Logging in to the 3D spatial object visualization service;
collecting the target location to be visualized and the purpose of using the visualization service;
identifying an object included in the tile corresponding to the target position;
identifying an object to be visualized in consideration of the user's authority and the purpose of use among the objects included in the tile; and
Visualizing the 3D topographic information and the confirmed object to be visualized
including,
The step of identifying the object included in the tile corresponding to the target location includes:
checking whether a tile corresponding to the current location or address exists in the underground space object table;
if the tile exists, checking whether all objects corresponding to the tile exist in a database in the mobile terminal;
if all objects of the tile exist, checking whether all objects are the latest versions;
checking the permission start date and permission end date of the underground space object table if all objects of the tile are the latest versions;
checking the dimension and permission authority of the underground space objects in the object file list table; and
Checking whether the current date is a date accessible to the tile through the permission start date and the permission end date
including,
Checking whether the current date is a date accessible to the tile includes:
If the current date is a date accessible to the tile as a result of checking whether the current date is a date accessible to the tile, the step of confirming the object to be visualized
A method of visualizing a 3D spatial object in a 3D spatial object visualization device.
delete According to claim 1,
The underground space object table is
ID, tile location coordinates, address, permission start date and permission end date
A method of visualizing a 3D spatial object in a 3D spatial object visualization device.
According to claim 1,
The object file list table is,
ID, underground space object name, file name, dimension, permission authority and version including
A method of visualizing a 3D spatial object in a 3D spatial object visualization device.
According to claim 1,
The step of identifying the object included in the tile corresponding to the target location includes:
If the tile exists, as a result of checking whether all objects corresponding to the tile exist in the database in the mobile terminal, if all objects of the tile do not exist, the object required for the 3D spatial object visualization service is requested and transmitted receiving, and storing the information on the object located in the newly transmitted underground space in the underground space object table and the object file list table stored in the database;
A method of visualizing a 3D spatial object in a 3D spatial object visualization apparatus further comprising a.
According to claim 1,
The step of identifying the object included in the tile corresponding to the target location includes:
As a result of checking whether all the objects are the latest version, if the version is not the latest version, the 3D spatial object visualization service requests and receives the object that needs to be updated, and the underground space object table and the object stored in the database The step of storing the information about the object located in the newly transmitted underground space in the file list table and updating the version
A method of visualizing a 3D spatial object in a 3D spatial object visualization apparatus further comprising a.
According to claim 1,
The permission is
It is one of read, update, and non-visible according to the purpose of measurement,
The non-visible,
Changed automatically when the above permit expiration date has passed;
A method of visualizing a 3D spatial object in a 3D spatial object visualization device.
According to claim 1,
The step of visualizing the three-dimensional topographic information and the confirmed object to be visualized,
According to the authority of the user that can be confirmed in the step of logging in, the entire identified object to be visualized is visualized, or from among the identified objects to be visualized, only partially visible up to a preset distance from the essential object according to the purpose of use.
A method of visualizing a 3D spatial object in a 3D spatial object visualization device.
According to claim 1,
The step of visualizing the three-dimensional topographic information and the confirmed object to be visualized,
Visualizing the three-dimensional topographic information and the identified object to be visualized at the point in time requested by the user
A method of visualizing a 3D spatial object in a 3D spatial object visualization device.
According to claim 1,
generating and uploading field measurement data after field measurement work; and
Logout step of the 3D spatial object visualization service
A method of visualizing a 3D spatial object in a 3D spatial object visualization apparatus further comprising a.
11. The method of claim 10,
The field measurement data is,
ID, survey date, location coordinates, underground space object name, work type and transmission status including
A method of visualizing a 3D spatial object in a 3D spatial object visualization device.
a communication unit communicating with the on-site support service server;
a storage unit for storing object information;
a login processing unit that logs in to the 3D spatial object visualization service;
an information collection unit that collects the target location to be visualized and the purpose of using the visualization service;
an object information management unit for checking an object included in the tile corresponding to the target location; and
A 3D visualization unit that identifies an object to be visualized in consideration of the user's authority and the purpose of use among the objects included in the tile, and visualizes 3D topographic information and the confirmed object to be visualized
including,
The object information management unit
It is checked whether a tile corresponding to the current location or address exists in the underground space object table, and if the tile exists, it is checked whether all objects corresponding to the tile exist in the database in the mobile terminal, and if all objects of the tile exist , check that all objects are the latest version, and if all objects of the tile are the latest version, check the permission start date and permission end date of the underground space object table, and check the dimension and permission authority of the underground space objects in the object file list table and checking whether the current date is a date accessible to the tile through the permission start date and the permission end date,
The three-dimensional visualization unit,
If the current date is a date accessible to the tile as a result of checking whether the current date is a date accessible to the tile, identifying the object to be visualized
3D space object visualization device.
13. The method of claim 12,
The three-dimensional visualization unit,
According to the authority of the user that can be confirmed in the log-in process, the entire identified object to be visualized is visualized, or only a predetermined distance from the essential object according to the purpose of use among the identified objects to be visualized is partially visualized.
3D space object visualization device.
13. The method of claim 12,
The three-dimensional visualization unit,
Visualizing the three-dimensional topographic information and the identified object to be visualized at the point in time requested by the user
3D space object visualization device.
13. The method of claim 12,
Object information update unit that creates and uploads field measurement data after field measurement work
3D space object visualization apparatus further comprising a.
16. The method of claim 15,
The field measurement data is,
ID, survey date, location coordinates, underground space object name, work type and transmission status including
3D space object visualization device.

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