KR101967587B1 - Method and apparadus for generating surveying data using task screen providing overlapped layers of construction map data, map data from external map service, and public map data - Google Patents

Abstract

Provided is a method for generating measurement data, which generates each of a design drawing related to a generated project, an external map related to the design drawing, and a public map of which an area corresponds to an area related to the design drawing as layers, displays a work screen by overlapping at least two among layers as a work screen in accordance with a selection by a user, and displays a design point on a work screen displaying the layers and an actual measurement point for the design point.

Description

METHOD AND APPARATUS FOR GENERATING SURVEYING DATA USING TASK BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a method and apparatus for generating survey data including a survey point using an operation screen providing design drawing data, map data from an external map service and public map data as overlapped layers. SCREEN PROVIDING OVERLAPPED LAYERS OF CONSTRUCTION MAP DATA, MAP DATA FROM EXTERNAL MAP SERVICE, AND PUBLIC MAP DATA}

Embodiments relate to a method and apparatus for generating survey data using a mobile terminal used as a surveying controller connected via a wireless communication with a surveying device (e.g., a DGPS device). More particularly, And a method and an apparatus for generating survey data (survey result) necessary for carrying out an inner work by inputting a survey point through a work screen which provides map data of the map data and public map data as overlapped layers.

Surveying is an essential task in building a building or facility, and it is necessary to check whether the design drawings made by the designer of the building or facilities match the actual site. For example, for the design points included in the design drawing, it is required to measure the actual positions of the design points to acquire the measurement points, and to compare the measurement points with the design points. When a building or facility is constructed according to the design drawing while the design point and the measurement point do not coincide with each other, the completed building may not meet the actual environment and may deviate from the designer's intention. Therefore, if the design point and the measurement point do not match, it is necessary to modify the design drawing so that it matches.

However, when the actual position is measured using only the design drawing in this way, it is difficult to intuitively grasp the position of the design point or the position of the measurement point which is required by the surveyor, and the accuracy of the measurement is hardly guaranteed. Also, if the number of design points to be surveyed is very large, the efficiency can not be achieved.

Therefore, not only the design drawing but also the external map and the public map provided from the external map service can be further utilized in surveying. In carrying out the survey according to the design point of the design drawing, There is a need for a method and apparatus for generating survey data (survey results) that can be intuitively compared in maps and public maps.

Korean Registered Patent No. 10-1532582 (June 24, 2015) discloses a method for processing cadastral survey data. In order to register the land in the land study or restore the boundaries registered in the cadastral study on the land surface, In order to efficiently and systematically maintain and manage the obtained cadastral survey data when setting a reference point to measure the boundary or area of the cadastral survey data.

The information described above is for illustrative purposes only and may include content that does not form part of the prior art and may not include what the prior art has to offer to the ordinary artisan.

In one embodiment, each of the design drawings associated with the generated project, the external map associated with the design drawing, and the public map corresponding to the region associated with the design drawing are generated as layers, and at least two It is possible to provide a survey data generation method that can display a measurement point for a design point and a design point on a work screen displayed as a layer (s) by displaying the work as a work screen.

In one aspect, a method for generating survey data performed by a mobile terminal used as a surveying controller connected via wireless communication with a surveying device, comprising the steps of: loading a design drawing associated with a generated project; Comprising the steps of: setting a plurality of design points for performing an actual measurement in an offline environment with respect to the design drawing; loading an external map associated with the design drawing provided from an external application; Creating a design drawing layer of the design drawing by coordinate transforming the coordinates included in the design drawing into a coordinate system corresponding to the external map by loading the corresponding public map, By performing coordinate conversion into a coordinate system corresponding to the map, Comprising the steps of: generating a public map layer of the public map corresponding to a design drawing; receiving information about a plurality of survey points actually measured corresponding to the plurality of design points from the surveying device; Displays at least two of the design drawing layer, the outer map, and the public map layer as a work screen on the screen of the mobile terminal, or displays at least one of the design drawing layer, the outer map, Displaying the design points and the measurement points at corresponding positions of the work screen, wherein the measurement points and the design points are displayed to be visually distinguishable from each other; A measurement day including the positional relationship between the design points and the measurement points The step of generating and method for generating a measurement data comprises the step of outputting the generated measurement data to perform naeeop server performing the naeeop is provided.

The step of loading the design drawing includes downloading design drawing conversion data based on the design drawing created by a designer from a data conversion server, storing the downloaded design drawing conversion data in a virtual server of the mobile terminal, And loading the design drawing conversion data stored in the virtual server, wherein the design drawing conversion data allows the data of the design drawing in dxf format to be viewable on the web browser of the mobile terminal by the data conversion server It can be data in JavaScript (js) format.

The step of loading the design drawing may include uploading the design drawing of the dxf format pre-stored in the mobile terminal to the data conversion server.

The design drawing conversion data is stored in the form of a hidden file in the virtual server and is not identified as existing in the mobile terminal and the mobile terminal can be identified as having only data of the design drawing in dxf format .

In the step of loading the design drawing conversion data, access to the design drawing conversion data stored in the virtual server is recognized as the access of the mobile terminal to the external server, so that the security policy requested by the web browser can be satisfied have.

The work screen may be displayed in accordance with the OpenLayer standard in an application based on the web browser.

The public map may include at least one of a cadastral map, a use cadastral map, a use area map, a residential development map, an administrative district map, a water resource management map, a national traffic information map, and a development activity permission map.

In another aspect, there is provided a survey data generation apparatus used as a survey controller connected to a survey apparatus via a wireless communication, the survey data generation apparatus being a user's mobile terminal, loading a design drawing associated with a generated project, A data loading unit for loading an external map associated with the design drawing provided from an external application and loading a public map corresponding to an area associated with the design drawing, A design point setting unit for setting a plurality of design points to be used for actual measurement of the design drawing; a design drawing layer of the design drawing is generated by coordinate conversion of the coordinates included in the design drawing to a coordinate system corresponding to the external map, Coordinates included in the map are corresponded to the external map A layer generating unit for generating a public map layer of the public map corresponding to the design drawing by performing coordinate conversion to a coordinate system, receiving information about a plurality of survey points actually measured corresponding to the plurality of design points from the measurement apparatus And a display unit for displaying at least two of the design drawing layer, the external map and the public map layer on the screen of the mobile terminal as a work screen in accordance with the selection by the user, A layer display unit that displays either the external map or the public map layer as the work screen and displays the design points and the measurement points at corresponding positions of the work screen, A surveying data generating unit And a data output unit for outputting the generated survey data to an inner work performing server for performing inner work, wherein the survey points and the design points are visually distinguished from each other and displayed on the work screen, Device is provided.

The surveying data generation device further includes a virtual server, wherein the data loading unit downloads design drawing conversion data based on the design drawing created by a designer from a data conversion server, and transmits the downloaded design drawing conversion data to the mobile terminal Wherein the design drawing conversion data is stored in a virtual server, and the design drawing conversion data stored in the virtual server is loaded, wherein the design drawing conversion data is a data structure in which the data of the design drawing in the dxf format is readable on the web browser of the mobile terminal (Js) type of data to be used in the present invention.

A layer corresponding to each of the design drawing, the external map associated with the design drawing, and the public map corresponding to the area associated with the design drawing is superimposed and displayed according to the user's selection on the operation screen of the mobile terminal, It is possible to accurately grasp the position of the design point requiring the measurement and intuitively compare the design point with the actually measured point.

A public map corresponding to an area associated with a design drawing included in a work screen, an external map associated with a design drawing, and a design drawing is provided as a layer corresponding to dynamic data instead of static data such as an image, The design point and the measurement point can be accurately displayed on the work screen even in response to the reduction operation and the position movement operation.

Design drawing data from a server is stored in a virtual server in a mobile terminal in the form of a hidden file, and access to data stored in the virtual server (instead of access to the server) is made at the time of loading a design drawing, Unnecessary data communication with the server can be minimized while satisfying the security policy required by the web browser.

1 shows a method for receiving design drawing conversion data from a server and generating survey data using a mobile terminal used as a surveying controller connected via wireless communication with a surveying device according to an embodiment.
FIG. 2 is a block diagram showing a structure of a mobile terminal used as a surveying controller and a server for converting the obtained design drawing into data suitable for browsing at a mobile terminal and providing the same, according to an embodiment.
3 is a flow diagram illustrating a method for generating survey data by a mobile terminal used as a surveying controller, in accordance with one embodiment.
4 is a flowchart illustrating a method of loading a design drawing based on design drawing conversion data received from a server, according to an example.
5 is a flowchart illustrating a method of converting a design drawing file by server into data suitable for browsing at a mobile terminal according to an embodiment.
6 is a flow diagram illustrating a method for performing tasks required to perform an inner work or an inner work based on survey data received from a mobile terminal by a server, according to an example.
7 shows a method of displaying a plurality of measurement points measured by a measurement apparatus on a work screen of a mobile terminal, according to an example.
FIG. 8 shows a method of layering a design drawing, an external map, and a public map according to an example and superimposing them on each other and displaying them as a work screen.
9 illustrates a method of converting a design drawing uploaded from a mobile terminal to a server into data of a format viewable on a web browser of a mobile terminal and loading a design drawing in a mobile terminal receiving the converted data according to an example .

In the following, embodiments will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 shows a method for receiving design drawing conversion data from a server and generating survey data using a mobile terminal used as a surveying controller connected via wireless communication with a surveying device according to an embodiment.

The illustrated survey data generation apparatus 100 may be an apparatus for generating survey data (survey results) based on survey point information according to the survey at the actual location by the survey apparatus 120. [ The survey data generation apparatus 100 may be a controller that is connected to the survey apparatus 120 via wireless communication and manages the survey apparatus 120. The survey data generation device 100 may be a mobile user terminal, such as a smart phone, as shown. The data generating apparatus 100 may be referred to as a mobile terminal 100 hereinafter.

 The mobile terminal 100 may be provided with a survey data generation application. The mobile terminal 100 uses this measurement data generation application to create a project, load a design drawing associated with the project, receive information about an actual measurement point for design points set in the design drawing, The survey data can be generated based on the information. The survey data generation application may be a web browser based application. Survey data may be survey data required to perform inside work as a so-called survey result. For example, the work may be to add additional information to the survey result, such as coordinates, images, and descriptions for each survey point.

The operations performed by the configuration of the mobile terminal 100 or the mobile terminal 100 may be performed by the functions of the survey data generation application performed through the configuration of the mobile terminal 100 or the mobile terminal 100 Or the operation of the mobile terminal 100 or the mobile terminal 100 controlled by the survey data generation application).

Hereinafter, a method of generating survey data will be briefly described with reference to Fig.

The mobile terminal 100 may request loading of a design drawing to perform the measurement. In response to the loading request of the design drawing from the mobile terminal 100, the server 110 may provide the conversion data for the design drawing to the mobile terminal 100. That is to say, the mobile terminal 100 can download the conversion data for the design drawing from the server 110. The design drawing may have been stored in the server 110, or may have been uploaded from the mobile terminal 100 requesting loading of the design drawing.

The server 110 is a server that converts the design drawing (design drawing file) in the dxf format into data of a suitable format for display through the survey data generation application and transmits the converted data to the mobile terminal 100, Device.

The mobile terminal 100 may load the design drawing using the design drawing conversion data received from the server 110. [ The mobile terminal 100 may receive measurement point information from the measurement device 120 indicating the measured values for the design points included in the loaded design drawing. The measuring device 120 may be, for example, a DGPS (Differential GPS) device (DGPS receiver).

The mobile terminal 100 may generate survey data including survey point information for each of the design points and output it to the server performing the inner work. The server performing the inner workings may be the server 110 as shown. Alternatively, it may be a separate server other than the server 110.

The mobile terminal 100 may display the measurement points measured for the design point and / or design point through the operation screen of the survey data generation application. The work screen is a screen displayed in accordance with the execution of the survey data generation application. It provides a function to add / change / delete the measurement point measured for the design point and / or design point, and displays the design point and / .

In addition to the design drawing, the mobile terminal 100 may load an external map associated with a design drawing provided from an external application (for example, an application that provides a map service) and a public map corresponding to an area associated with the design drawing.

As shown, the mobile terminal 100 includes a design drawing layer 130-1 of the loaded design drawing, an outer map layer 130-2 of the loaded outer map, and a public map layer 130-3 of the loaded public map The design drawing layer 130-1, the outer map layer 130-2 and the public map layer 130-3 are superimposed on the screen of the mobile terminal 100 according to the selection by the user (Overlapped) and can be displayed as a work screen. Design points and measurement points can also be displayed on the work screen on which the layers 130 are displayed in a concatenated manner.

Through the overlapped layers 130, the user can compare the design drawing with the external map and the public map, and not only confirm the position of the measurement points measured in the design drawing, Location, and can intuitively compare the location of measurement points in design drawings, exterior maps, and public maps.

A more detailed configuration and functionality of the mobile terminal 100 and the server 110, including methods of generating the layers 130 and a method of converting the design drawing file into data of a suitable format for display via a survey data generation application, Will be described in more detail with reference to Figs. 2 to 9 to be described later.

FIG. 2 is a block diagram showing a structure of a mobile terminal used as a surveying controller and a server for converting the obtained design drawing into data suitable for browsing at a mobile terminal and providing the same, according to an embodiment.

2, the specific configurations of the mobile terminal 100 and the server 110 will be described.

As described above with reference to FIG. 1, the mobile terminal 100 may be a device that generates survey data by executing a survey data generation application. The mobile terminal 100 may be used as a surveying controller connected via wireless communication with at least one surveying device (e.g., a DGPS device) Wireless communication between the metering device 120 and the mobile terminal 100 may be via Bluetooth. Alternatively, any short-range wireless communication scheme may be applied to wireless communication between the metering device 120 and the mobile terminal 100. The mobile terminal 100 may be, for example, a smart phone, a personal computer (PC), a laptop computer, a laptop computer, a tablet, an Internet Of Things device, or a wearable computer computer, or the like.

The mobile terminal 100 may include a communication unit 204, a processor 200, and a display unit 202.

The communication unit 204 may be a configuration in which the mobile terminal 100 communicates with the server 110, the measurement apparatus 120, and other devices. In other words, the communication unit 204 includes a network interface card, a network interface chip, and a networking interface of the mobile terminal 100 that transmit / receive data and / or information to the server 110, the measurement apparatus 120, Port, or a software module such as a network device driver or networking program.

The processor 200 may manage the components of the mobile terminal 100 and may execute programs or applications used by the mobile terminal 100. [ For example, the processor 200 can execute the survey data generation application, and can process operations necessary for execution of the application and data processing. The processor 200 may be at least one processor of the mobile terminal 100 or at least one core in the processor

The display unit 202 may be a display device for outputting data input by a user of the mobile terminal 100 or outputting a work screen. For example, the display unit 202 may include a touch screen. In this case, the display unit 202 may be configured to include a function of an input unit for receiving selection from the user.

The configurations of the processor 200 will be described in more detail below.

Processor 200 may include configurations 210-270. Each of the configurations 210-270 of the processor 200 may be implemented with one or more software modules and / or hardware modules. Although not shown, the processor 200 may further include a project creation unit for creating a project associated with the design and construction of a building or facility. The creation of the project can be done according to the user's selection through the survey data generation application.

The data loading unit 210 loads the design drawing associated with the generated project and generates an external map (e.g., a DAUM map, a Google map, or the like) associated with a design drawing provided from an external application such as a map service providing application NAVER map, etc.) and load the public map corresponding to the area associated with the design drawing.

The design point setting unit 220 can set a plurality of design points for performing an actual measurement in an offline environment with respect to a design drawing according to selection by the user through the measurement data generation application. The design points may already be set in the design drawing.

The layer generation unit 230 generates a design drawing layer 130-1 of the design drawing by performing coordinate transformation of the coordinates included in the design drawing into a coordinate system corresponding to the external map, and maps the coordinates included in the public map to the external map The public map layer 130-3 of the public map corresponding to the design drawing can be generated. The layer generating unit 230 may generate the outer map layer 130-2 by layering the outer map.

The measurement point setting unit 240 may receive information on a plurality of measurement points actually measured corresponding to a plurality of design points from the measurement apparatus 120. [

The layer display unit 250 displays the design drawing layer 130-1 and the external map 130-3 through the display unit 202 of the mobile terminal 100 according to the selection by the user through the survey data generation application, 2) and the public map layer 130-3 are overlapped and displayed as a work screen or the design drawing layer 130-1, the external map (external map layer) 130-2 and the public map layer 130 -3) can be displayed as a work screen. In addition, the layer display unit 250 may display the design points and the corresponding measurement points at corresponding positions on the work screen. Survey points and design points can be visually distinguished from each other and displayed on the work screen.

The surveying data generating unit 260 may generate survey data including the design points and the positional relationship of the surveying points. Survey data can be used to perform an inner work as a survey result.

The data output unit 270 may output the generated measurement data to an internal performance server (through the communication unit 204) that performs internal business. The internal performance performing server may be the server 110 or another external server not shown.

The server 110 may be a server or other computing device that provides design drawing transformation data to the mobile terminal 100 upon request of the design drawing loading of the mobile terminal 100. [ That is, the server 110 may be a design drawing data providing server that communicates with the mobile terminal 100 used as a surveying controller. In addition, as described above, the server 110 may also serve as a server that performs an inner work or performs an operation required to perform an inner work.

The server 110 may include a communication unit 290 and a processor 280. The description of the communication unit 204 and the processor 200 described above may be similarly applied to the communication unit 290 and the processor 280, and redundant description will be omitted.

The configuration of the processor 280 of the server 110 will be described in more detail below.

Processor 280 may include configurations 282-286. Each of the configurations 282 through 286 of the processor 280 may be implemented with one or more software modules and / or hardware modules.

The design drawing file obtaining unit 282 can obtain a design drawing file including a design drawing created by a designer. The design drawing file may be, for example, dxf format data.

The data conversion unit 284 can convert the first data in the dxf format of the design drawing file into the second data in the format based on GEOJSON. In addition, the data conversion unit 284 converts the third data in the form of a JavaScript (js) format that enables the second data to be read on the web browser of the mobile terminal 100 (i.e., in a web browser- Data can be converted. And the second data may be intermediate conversion data in converting the first data into the third data.

The data providing unit 286 may provide the converted third data of the JavaScript (js) format as design drawing data to the mobile terminal 100 requesting loading of the design drawing.

The third data may include information corresponding to all the drawing points included in the design drawing. Drawing points may represent feature points of a design drawing. The drawing point may include a design point. Based on the third data, in the mobile terminal 100, the layer 130-1 of the design drawing can be displayed through the survey data generation application which is a web browser based application.

As described above, by converting the design drawing file of the dxf format into the data of the JavaScript (js) format by the data conversion unit 284, all the information (all drawing points) of the design drawing file is included A design drawing as a layer 130-1 that can be linked with an external map and a public map can be displayed on the mobile terminal 100. [

The third data may correspond to the design drawing conversion data described above.

Meanwhile, the mobile terminal 100 may further include a virtual server 206, and the data loading unit 210 may download the design drawing conversion data from the server 110. [ The downloaded design drawing conversion data can be stored in the virtual server 110. The data loading unit 210 may load the design drawing conversion data stored in the virtual server 206 when loading the design drawing.

The virtual server 206 is provided in the mobile terminal 100 but may be identified as an external server for the mobile terminal 100. [ That is to say, access to data stored in the virtual server 206 of the mobile terminal 100 is not limited to accessing the internal data of the mobile terminal 100, Can be recognized as the same.

At least some of the virtual servers 206 may be configured as part of the processor 200, and may include software modules and / or hardware modules.

By providing the virtual server 206 in the mobile terminal 100, even if the mobile terminal 100 repeatedly accesses the design drawing conversion data in loading the design drawing, Unnecessary data communication with the server can be minimized while satisfying the security policy.

More detailed features of the method of generating survey data by the mobile terminal 100 and more detailed features of a method of converting the design drawing file by the server 110 into data suitable for browsing at the mobile terminal 100 Will be described in more detail with reference to Figs. 3 to 9 to be described later.

The technical features described above with reference to FIG. 1 can be applied to FIG. 2 as it is, so that redundant description is omitted.

3 is a flow diagram illustrating a method for generating survey data by a mobile terminal used as a surveying controller, in accordance with one embodiment.

Referring to FIG. 3, a method of generating the layers 130 performed by the above-described mobile terminal 100 example and generating survey data will be described in more detail.

In step 305, the project creation section of the mobile terminal 100 may create a project (survey project) associated with the design and construction of the building or facility. The creation of the project can be done according to the user's selection through the survey data generation application.

In step 310, the data loading unit 210 may load the design drawing associated with the generated project. The step of loading a design drawing may be a step of requesting loading of the design drawing and acquiring data for displaying the drawing. For example, the data loading unit 210 may request the mobile terminal 100 to load the dxf-type design drawing stored in the mobile terminal 100, receive the design drawing conversion data corresponding to the dxf-type design drawing from the server 110 The design drawing can be loaded. Step 310 will be described in more detail with reference to FIG. 4, which will be described later.

In step 315, the design point setting unit 220 can set a plurality of design points to perform an actual measurement in an offline environment with respect to the design drawing, according to the selection by the user. The design point setting unit 220 can designate a design point for the design drawing according to the user's selection of the design drawing (for example, the drawing layer 130-1) displayed on the operation screen. The set design point can be displayed on the work screen. The design point can be set at a position where the user touches the design drawing displayed on the operation screen by the user. Design points can be connected to each other if the set design points are plural. The line connecting these design points may be a drawing line.

The design points may be predefined in the design drawing. That is, the drawing points included in the design drawing may correspond to the design points.

In step 320, the data loading unit 210 may load an external map associated with a design drawing provided from an external application. The external application may be an application that provides a map service. The external map can be an external map, for example, a DAUM map, a Google map, or a NAVER map.

In step 325, the data loading unit 210 may load a public map corresponding to the area associated with the design drawing. The public map may be pre-stored in the mobile terminal 100, or may be obtained from an external database providing public maps. The public map may include at least one of a cadastral map, a use cadastral map, a use area map, a residential development map, an administrative district map, a water resource management map, a national traffic information map, and a development activity permission map.

In step 330, the layer generating unit 230 may generate the design drawing layer 130-1 of the design drawing by coordinate transformation of the coordinates included in the design drawing into a coordinate system corresponding to the external map. Step 330 may be performed together according to the execution of step 310. [ That is, the design drawing layer 130-1 may be displayed on the work screen according to the loading by the step 310. [ The layer generating unit 230 may convert the coordinate system used by the design drawing into a coordinate system used by the external map. That is, all the drawing points included in the design drawing can be converted into coordinates of the coordinate system used by the external map. For example, the layer generating unit 230 may convert the coordinates of any coordinate system used by the design drawing into coordinates of the coordinate system used in the Google map. In step 330, the data corresponding to the design drawing used for the coordinate transformation may be the design drawing conversion data described with reference to FIG. 4 to be described later.

In step 335, the layer generation unit 230 converts the coordinates included in the public map into a coordinate system corresponding to the external map, thereby obtaining the public map layer 130-3 of the public map corresponding to the design drawing Can be generated. Step 335 may be performed together according to the performance of step 325. [ That is, the public map layer 130-3 may be displayed on the work screen according to the loading by the step 325. [ The layer generation unit 230 may convert the coordinate system used by the public map into a coordinate system used by the external map. That is, all the coordinates (feature points) included in the public map can be transformed into the coordinates of the coordinate system used by the external map. For example, the layer generation unit 230 may convert the coordinates of the Korean Geodetic System 2002 (ITRF 2000) coordinate system used by the public map into the coordinates of the coordinate system used in the Google map. In addition, the layer generating unit 230 may generate the outer map layer 130-2 by layering the outer map.

Coordinate systems used by design drawings, exterior maps, and public maps are described in more detail below.

That is, through the above-described steps 330 and 335, the design drawing and the public map can be map-matched to the external map by coordinate transformation. According to such map matching, design drawings, public maps, and external maps can be generated as layers 130 composed of dynamic data rather than static data.

In step 340, the measurement point setting unit 240 may receive information on a plurality of measurement points measured corresponding to a plurality of design points from the measurement apparatus 120. [ The measurement point may be information on a measured value (position information value) at a position corresponding to the design point set in the design drawing. The information about the measurement point can be transmitted from the measurement apparatus 120 to the measurement point setting unit 240 in accordance with the measurement by the measurement apparatus 120 and the measured point can be displayed at a corresponding position on the work screen have. If the displayed survey points are plural, the survey points can be connected to each other by a line.

In step 345, the layer display unit 250 displays the design drawing layer 130-1, the outer map layer 130-2, and the design drawing layer 130-1 through the display unit 202 of the mobile terminal 100, At least two of the public map layers 130-3 may be superimposed and displayed as a work screen or any one of the design drawing layer 130-1, the external map layer 130-2, and the public map layer 130-3 It can be displayed as a work screen.

That is, the user of the mobile terminal 100 may select the layers to be compared among the layers 130 so that the layers to be compared are overlapped and displayed on the display unit 202.

If there are a plurality of loaded design drawings or a plurality of loaded public maps, there may be a plurality of design drawing layers 130-1 or a plurality of public map layers 130-3 for one project. The layer display unit 250 can overlap selected layers of the plurality of design drawing layers 130-1 and / or the plurality of public map layers 130-3, as a work screen, according to the selection by the user have.

In step 350, the layer display unit 250 may display the set design points and the measured points on corresponding positions of the work screen. That is to say, the design points / measurement points can be displayed in the design drawing layer 130-1, the outer map layer 130-2 and the public map layer 130-3. The layer display unit 250 can display the newly added design point and the newly measured measurement points on the design drawing layer 130-1, the outer map layer 130-2, and the public map layer 130-3. That is, steps 315 and 340 may be performed after step 350 is performed.

Accordingly, the user of the mobile terminal 100 may designate at least two of the design drawing layer 130-1, the outer map layer 130-2, and the public map layer 130-3 as overlapping design points in the displayed work screen And measurement points, it is possible to perform intuitive positioning of design points and measurement points and intuitive comparison between design points and measurement points. The layer display unit 250 can display the measurement points and the design points so that they are visually distinguishable from each other in the operation screen. For example, measurement points and design points may be displayed in different colors, shapes, and / or thicknesses.

In the embodiment, the layers 130 composed of dynamic data rather than static data are displayed as work screens, so that the design points displayed on the layer and the measurement points displayed on the layers The point can be accurately displayed on the work screen (without breaking).

In step 350, the measurement data generation unit 250 may generate the measurement data including the positional relationship between the design points and the measurement points. The generated survey data may include data necessary for carrying out the inner work as the survey result, and may be data processed to be suitable for carrying out the inner work.

In step 355, the data output unit 270 may output the generated survey data to an inner work performing server that performs inner work. The inner-performing server may be a server that performs an inner work or performs an operation required to perform an inner work.

The method of generating survey data by the above-described steps 305 to 355 can conveniently perform the surveying using the mobile terminal 100 as a controller of the surveying device 120, The accuracy and efficiency of the survey can be improved.

The technical features described above with reference to FIGS. 1 and 2 can be applied to FIG. 3 as it is, so that redundant description is omitted.

4 is a flowchart illustrating a method of loading a design drawing based on design drawing conversion data received from a server, according to an example.

Referring to Fig. 4, the above-described step 310 will be described in more detail.

In step 410, the data loading unit 210 may upload the design drawing previously stored in the mobile terminal 100 to the data conversion server 110 when there is a loading request for the design drawing. The pre-stored design drawing may be a file in dxf format.

In step 420, the data loading unit 210 may download the design drawing conversion data based on the design drawing requested to be loaded from the data conversion server. The design drawing conversion data may be a design drawing of the dxf format uploaded from the mobile terminal 100, which has been data-converted by the server 110. [ Alternatively, the design drawing conversion data may be a data conversion of the design drawing of the dxf format previously stored in the server 110. At this time, the upload of step 410 may not be performed. For example, the design drawing conversion data may be data in the form of a JavaScript (js) format so that the data of the design drawing in the dxf format in the server 110 can be viewed on the web browser of the mobile terminal 100.

 The data conversion of the design drawing by the server 110 will be described in more detail with reference to FIGS. 5, 6 and 9 to be described later.

 In step 430, the data loading unit 210 may store the downloaded design drawing conversion data in the virtual server 206 of the mobile terminal 100. [ At this time, the downloaded design drawing conversion data can be stored in the virtual server 206 in the form of a hidden file. That is to say, the downloaded design drawing conversion data may not be identified as existing in the mobile terminal 100. The mobile terminal 100 can identify that only the data of the design drawing of the dxf format exists in the terminal and can identify that the data converted into the JavaScript (js) format does not exist.

In step 440, the data loading unit 210 may load the design drawing conversion data stored in the virtual server 206. [ Thus, the design drawing layer 130-1 can be generated based on the design drawing conversion data from the virtual server 206. [

In step 440 of loading the design drawing conversion data, access to the design drawing conversion data stored in the virtual server 206 of the mobile terminal 100 may be recognized as the access of the mobile terminal 100 to the external server have. That is, although the mobile terminal 100 actually accesses data stored in the mobile terminal 100, the mobile terminal 100 recognizes the access to the design drawing conversion data stored in the virtual server 206 as an access to data stored in the external server .

Accordingly, the security policy requested by the web browser of the mobile terminal 100 that does not allow access to data stored in the mobile terminal 100 can be satisfied.

In addition, if there is a request for loading a design drawing from the mobile terminal 100 again, communication between the additional server 110 and the mobile terminal 100 may not be required. In other words, when design drawing conversion data is stored in the virtual server 206, the mobile terminal 100 may no longer need to download data from the server 110. [ Accordingly, when the design drawing layer 130-1 is repeatedly viewed through the mobile terminal 100, the amount of communication data used by the mobile terminal 100 can be reduced.

The design drawing conversion data can be generated as the design drawing layer 130-1 in accordance with the coordinate transformation corresponding to the external map.

A work screen including the above-described layer 130-1 (or layers 130-2 and 130-3) may be displayed in accordance with the OpenLayer standard in an application based on a web browser executed in the mobile terminal 100 .

The technical features described above with reference to FIGS. 1 to 3 can be applied to FIG. 4 as it is, so that redundant description will be omitted.

5 is a flowchart illustrating a method of converting a design drawing file by server into data suitable for browsing at a mobile terminal according to an embodiment.

Referring to FIG. 5, a method for providing design drawing conversion data from the viewpoint of the server 110 to the mobile terminal 100 used as a surveying controller will be described.

In step 510, the design drawing file obtaining unit 282 can obtain a design drawing file including a design drawing created by a designer. The design drawing file may be, for example, dxf format data. For example, the design drawing file may have been uploaded by the mobile terminal 100 requesting loading of the design drawing. That is to say, the design drawing file can be received from the mobile terminal 100. Alternatively, the design drawing file may be pre-stored in the server 110 or other database (previously uploaded by the designer).

In step 520, the data conversion unit 284 may convert the second data of the other format of the design drawing file. For example, the data conversion unit 284 may convert the first data in the dxf format of the design drawing file into the second data in the format based on GEOJSON.

In step 530, the data conversion unit 284 may convert the second data into third data suitable for browsing in the mobile terminal 100. [ For example, the data conversion unit 284 may convert the second data into third data in the form of a JavaScript (js) format so that the second data can be viewed on the web browser of the mobile terminal 100. That is, the above-described second data may be intermediate conversion data in converting the first data into the third data.

The format based on GEOJSON can represent 'improved GEOJSON format'. When converting the design drawing data of the dxf format in the GEOJSON format, all drawing points (minutiae points) of the design drawing data can not be properly converted and the resulting design drawing data in the form of a JavaScript (js) can not be obtained.

In the embodiment, the design drawing file can be converted into the data of the JavaScript format including information corresponding to all the drawing points included in the design drawing by converting the design drawing file of the dxf format in a format based on GEOJSON rather than GEOJSON . 'GEOJSON-based format' can have GEOJSON as a merge form with JavaScript objects. Thus, the second data of the format based on GEOJSON may be suitable for conversion as the third data of the JavaScript format.

At step 540, the data provider 286 may provide the third data of the transformed JavaScript (js) format to the mobile terminal 100 requesting loading of the design drawing as design drawing data (transformation data) . As described above, the third data may include information corresponding to all the drawing points included in the design drawing.

Based on the provided third data, in the mobile terminal 100, the layer 130-1 of the design drawing can be displayed through an application based on the web browser.

The third data provided to the mobile terminal 100 may be stored in the form of a hidden file in the virtual server of the mobile terminal 100 and thus the third data may not be identified as existing in the mobile terminal 100 , It can be identified that only the design drawing file in the dxf format exists in the mobile terminal 100. [

The virtual server 206 is provided in the mobile terminal 100 so that when the mobile terminal 100 requests the loading of the design drawing, the server first transmits the third data to the mobile terminal 100 in order to provide the third data to the mobile terminal 100 You can communicate only once. That is, if there is a request to load the design drawing from the mobile terminal 100 again, the mobile terminal 100 (e.g., the mobile terminal 100) may transmit the third data stored in the virtual server 206 without the communication between the server 110 and the mobile terminal 100 The loading of the design drawing and the display of the design drawing layer 130-1 can be performed.

In step 550, the data providing 286 may be used if the design drawing (corresponding to the design drawing conversion data provided to the mobile terminal 100) has been previously viewed by another mobile terminal used as the surveying controller , And may further provide the mobile terminal 100 with configuration information associated with other mobile terminals. This configuration information 286 may be provided to the mobile terminal together with the third data, or may be included in the third data and provided to the mobile terminal 100.

The setting of the mobile terminal 100 associated with the loading of the design drawing may be changed based on the received configuration information. The environment setting information may include at least one of a coordinate system setting associated with a design drawing set by another mobile terminal, a calibration setting for the design drawing, design point information set in the design drawing, and actual measurement point information set in the design drawing.

Hereinafter, a method of converting the first data of the DXF format into the third data will be described in more detail.

The data converting unit 284 can load the first data of the DXF format and can parse the first data of the DXF format. The data converting unit 284 can convert tags (and attributes) included in the DXF format data into tags (and attributes) of other formats.

The data converting unit 284 may convert the parsing result of the first data of the DXF format into the first metadata. The first metadata may be metadata for tags (and attributes) associated with the entire data that the first data contains. For example, the first meta data may include data converted based on the GEOJSON standard of data that can be expressed in conformity with the GEOJSON standard among the first data, data (e.g., Korean text data) that can not be expressed in accordance with the GEOJSON standard, Lt; RTI ID = 0.0 > metadata. ≪ / RTI > The data conversion unit 284 can generate the additional metadata as data representing data that can not be expressed in accordance with the GEOJSON standard among the first data.

The first metadata may be transformed as second metadata to comply with the OpenLayer standard. The second metadata may include data converted based on the OpenLayer standard of data that can be expressed in conformity with the OpenLayer standard among the first metadata and additional metadata about data that can not be expressed in compliance with the OpenLayer standard have. The data conversion unit 284 can generate the additional metadata as data converted so that the data can not be expressed in accordance with the OpenLayer standard among the first metadata so as to conform to the OpenLayer standard.

The second metadata may be transformed as third metadata to comply with a JavaScript standard. The third meta data includes data converted based on the JavaScript standard of the data that can be expressed in conformity with the JavaScript standard among the second meta data and additional metadata about the data that can not be expressed in conformity with the JavaScript standard . The data conversion unit 284 may generate the additional metadata as data converted from the second metadata that can not be expressed in compliance with the JavaScript standard so that the data can conform to the JavaScript standard .

The data conversion unit 284 may generate third data of a JavaScript format based on the third metadata. The first to third metadata described above may correspond to the second data.

The technical features described above with reference to FIGS. 1 to 4 can be applied to FIG. 5 as it is, so duplicate description will be omitted.

6 is a flow diagram illustrating a method for performing tasks required to perform an inner work or an inner work based on survey data received from a mobile terminal by a server, according to an example.

In Fig. 6, an embodiment in which the above-described server 110 operates as a server performing work necessary for performing an inner work or an inner work will be described.

In step 610, the server 110 may receive the survey data from the mobile terminal. The survey data may include information about a plurality of design points corresponding to locations to perform an actual survey in an offline environment set for a design drawing, And may include information about a plurality of measurement points measured in correspondence with a plurality of design points by the measurement apparatus 120 connected via wireless communication. Survey data may be metrology results as data suitably processed to perform the tasks required for internal or internal affairs.

At step 620, the server 110 may perform the tasks necessary to perform an inner work or an inner work based on the survey data.

The technical features described above with reference to FIGS. 1 to 5 can be applied to FIG. 6 as it is, so that redundant description is omitted.

7 shows a method of displaying a plurality of measurement points measured by a measurement apparatus on a work screen of a mobile terminal, according to an example.

In Fig. 7, an example of a work screen is shown. In the illustrated work screen, only a layered outer map (i.e., the outer map layer 130-2) was displayed, and the other layers did not overlap. The illustrated 710 may represent the current location of the mobile terminal 100.

As shown, the measurement points 720 can be displayed on the outer map layer 130-2 of the outer map provided through the external application. The measurement points may be connected by lines as shown.

FIG. 8 shows a method of layering a design drawing, an external map, and a public map according to an example and superimposing them on each other and displaying them as a work screen.

As shown in (a) of FIG. 8, the user can select the layers to be displayed on the work screen through the survey data generation application. For example, it may be selected whether to display the satellite map of the next map, the outer map layer 130-2 in street view or hybrid form. In addition, whether or not to display the public map layer 130-3 and the design drawing layer 130-1, such as a cadastral map and a use cadastral map, can be selected. As shown in the illustrated example, only one outer map layer 130-2 can be selected, and a plurality of public map layers 130-3 and design drawing layer 130-1 can be selected. By selecting which layer to display, the layers can be superimposed and displayed on the work screen as shown in (b) and (c) of FIG.

The illustrated work screen is to display layers of dynamic data based, and may be free of operations such as movement, enlargement and reduction.

Also, the set measurement point (or design point) can also be implemented as a separate layer. In other words, the layer generating unit 230 may generate measurement points (or design points) as layers separate from the layers 130. Therefore, depending on the user's selection, the measurement point (or design point) may not be displayed or displayed on the work screen.

The technical features described above with reference to Figs. 1 to 6 can be applied to Figs. 7 and 8 as they are, so duplicate descriptions are omitted.

9 illustrates a method of converting a design drawing uploaded from a mobile terminal to a server into data of a format viewable on a web browser of a mobile terminal and loading a design drawing in a mobile terminal receiving the converted data according to an example .

In Fig. 9, data conversion in the client-server view and transmission and reception of the converted data will be described.

The client 100 corresponds to the mobile terminal 100 described above. If there is a design drawing loading request (910) from the client (100), the design drawing file (first data) in the form of dxf stored in the client (100) can be uploaded to the server (920). The server 110 may convert the received design drawing file in dxf format to second data in a format based on GEOJSON (930). The second data may be converted to third data in a JavaScript format (940). The server 110 may transmit the third data of the JavaScript format to the client 100 (950). The client 100 may store the received third data of the JavaScript format in the virtual server 206 (960). Thereafter, if there is a design drawing loading request (970), and if there is a viewing request (980) for the design drawing layer (130-1), the design drawing layer (130- 1) may be displayed.

Therefore, unnecessary data communication with the server 110 can be prevented even if there is a viewing request or a loading request of the repetitive design drawing, so that the data communication use amount of the client 100 can be reduced.

The technical features described above with reference to FIGS. 1 to 7 can be applied to FIG. 9 as it is, so that redundant description will be omitted.

On the other hand, a method of converting the data of the design drawing described above with reference to Figs. 4 to 6 and 9 into data suitable for display on a mobile terminal can be similarly applied to a method of converting public map data. Therefore, redundant description is omitted.

In the following, coordinate systems used by design drawings, exterior maps and public maps are described in more detail.

The geoid and ellipsoid that are the basis of the coordinate system can be defined as follows. A geoid can be a mathematical model of the earth that is the basis for various operations established in geodesy. The ellipsoid can be one that redefines the geometry of the earth, which is most similar to a geoid, to a flat spheroid. Ellipsoids can be classified as 1) earth ellipsoids and 2) reference ellipsoids. 1) The earth ellipsoid, in geodesy, is the geometric shape of the earth most similar to a geoid, and can represent a flat ellipsoid. The Earth Ellipsoid can be defined as the longitude and the flatness. 2) A reference ellipsoid means that it is impossible to express an irregular earth as an ellipsoid without error, and thus each country may define a globe ellipsoid suitable for the geoid face of the region.

Below is an example of the earth ellipsoid.

Datum (geodetic system), when the ellipsoid is determined, can be used to indicate the position reference of the most suitable ellipsoid in the area. For example, the world geodetic system can be used to define the center of the ellipsoid by using the international standard ellipsoid, defining it as the center of mass of the earth.

Below is an example of an Earth-center datum and a local datum.

The charts used in the Republic of Korea can be based on the Korean Geodetic System 2002 (ITRF2000), the Korean Geodetic System 2002 (KGD 2002), and the World Geodetic System. Typical world geodetic systems can be WGS system, ITRF system, PZ system and so on.

[Projection projection method]

The ellipsoid can be represented by three-dimensional coordinates or latitude and longitude coordinates. However, this is different from the coordinates on a two-dimensional (planar) map because it is a three-dimensional coordinate (curved surface) on the ellipsoid. In order to represent the three-dimensional coordinates of the ellipsoid on a plane, a process called projection is required. The projection system can be further subdivided in the projection process. For example, when the Bessel coordinate system is used, the projection is mainly performed by the TM projection method. When the WGS84 coordinate system is used, the projection is mainly performed by the UTM projection method. In Korea, both TM method and UTM method are used.

1) TM (Transverse Meractor) - Transverse cylindrical projection

2) UTM Coordinate System (Universal Transverse Mercator)

1) TM (Transverse Merctor): In Korea, the TM (Transverse Mer- trotor) coordinate system, which is a plane rectangular coordinate system, is used as the basic system of the national basic diagram.

In the case of Korea, GRS80 ellipsoid is applied as a basic ellipsoid in the case of Korea, and the origin of horizontal reference of coordinates is 125 °, 127 °, 129 °, 131 ° according to the position in the longitudinal direction. , And Donghae origin.

2) Universal Transverse Mercator: The UTM coordinate system is one of the coordinate systems using the transverse Mercator projection. Divide the whole world into 6-degree-long regions, specify a separate origin and axis for each of these regions, It is expressed in meter unit. These UTM Zone numbers move eastward at intervals of 6 degrees in latitude with 180 degrees west, and increase sequentially.

In the UTM coordinate system, the position of the reference origin is the position where the equator coincides with the central hardness line of each UTM Zone. Based on this point, the longitudinal direction is set as the X axis and the latitude direction is set as the Y axis. In the Republic of Korea, it is located in the 52nd Zone, and the reference origin of this region is 129 degrees longitude and 0 degree latitude as the origin of the UTM coordinate system.

The following shows the standard of rectangular coordinates in Korea.

Below are examples of coordinate systems used by design drawings, external maps, and public maps.

* Central origin (GRS80) -falseY: 50000: Coordinate system in use in the following map

= 500000 + ellps = GRS80 + units = m + no_defs = 500000 + ellps = 5181 + proj = tmerc + lat_0 = 38 + lon_0 = 127 + k = 1 + x_0 = 200000 + y_0 = 500000 +

The design drawing may be created using the coordinate system of any one of the above examples and may be layered with the outer map by performing coordinate transformation to the coordinate system used by the outer map.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA) A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code 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.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Claims (10)

A method of generating survey data performed by a mobile terminal used as a surveying controller connected to a surveying device via wireless communication,
Loading a design drawing associated with the generated project;
Setting a plurality of design points to perform an actual measurement in an offline environment with respect to the design drawing according to a selection by a user;
Loading an external map associated with the design drawing provided by an external application;
Loading a public map corresponding to an area associated with the design drawing;
Generating a design drawing layer of the design drawing by coordinate transformation of the coordinates included in the design drawing into a coordinate system corresponding to the external map;
Generating a public map layer of the public map corresponding to the design drawing by coordinate transformation of coordinates included in the public map into a coordinate system corresponding to the external map;
Receiving information on a plurality of measurement points actually measured corresponding to the plurality of design points from the measurement apparatus;
At least two of the design drawing layer, the external map and the public map layer are superimposed and displayed as a work screen on the screen of the mobile terminal according to the selection by the user, or the design drawing layer, the external map, Displaying one of the map layers as the operation screen;
Displaying the design points and the measurement points at corresponding positions of the work screen, the points of measurement and the design points being displayed to be visually distinguishable from each other;
Generating survey data including the positional relationship between the design points and the survey points; And
And outputting the generated survey data to an inner work performing server for performing inner work
/ RTI > The method of claim 1, further comprising: The method according to claim 1,
Wherein loading the design drawing comprises:
Downloading design drawing conversion data based on the design drawing created by a designer from a data conversion server;
Storing the downloaded design drawing conversion data in a virtual server of the mobile terminal; And
Loading the design drawing conversion data stored in the virtual server
Lt; / RTI >
Wherein the design drawing conversion data is data in a JavaScript (js) format that enables data in the design drawing in dxf format to be viewed on the web browser of the mobile terminal at the data conversion server. The method according to claim 1,
Wherein loading the design drawing comprises:
A step of uploading the design drawing of the dxf format already stored in the mobile terminal to the data conversion server
/ RTI > The method of claim 1, further comprising: 3. The method of claim 2,
Wherein the design drawing conversion data is stored in the form of a hidden file in the virtual server and is not identified as existing in the mobile terminal,
The mobile terminal
wherein only the data of the design drawing in dxf format is identified as present. 5. The method of claim 4,
In loading the design drawing conversion data,
Wherein access to the design drawing conversion data stored in the virtual server is recognized as an access of the mobile terminal to an external server so that the security policy required by the web browser is satisfied. 3. The method of claim 2,
Wherein the work screen is displayed in accordance with an OpenLayer standard in an application based on the web browser. The method according to claim 1,
Wherein the public map includes at least one of a cadastral map, a use cadastral map, a use area map, a residential development map, an administrative district map, a water map, a national traffic map, and a development activity map. A computer program stored on a computer readable recording medium for executing the method of claim 1 in a computer. 1. A survey data generation device used as a surveying controller connected to a surveying device via wireless communication,
Wherein the survey data generation device is a mobile terminal of a user,
A data loading unit loading a design drawing associated with the generated project, loading an external map associated with the design drawing provided from an external application, and loading a public map corresponding to an area associated with the design drawing;
A design point setting unit configured to set a plurality of design points for performing an actual measurement in an offline environment with respect to the design drawing according to the selection by the user;
A design drawing layer of the design drawing is generated by performing coordinate transformation of coordinates included in the design drawing to a coordinate system corresponding to the external map, and coordinates of the coordinates included in the public map are converted into coordinate systems corresponding to the external map, A layer generation unit for generating a public map layer of the public map corresponding to a design drawing;
A measurement point setting unit for receiving information on a plurality of measurement points actually measured corresponding to the plurality of design points from the measurement apparatus;
At least two of the design drawing layer, the external map and the public map layer are superimposed and displayed as a work screen on the screen of the mobile terminal according to the selection by the user, or the design drawing layer, the external map, A layer display unit that displays any one of the map layers as the work screen and displays the design points and the measurement points at corresponding positions of the work screen;
A survey data generation unit for generating survey data including the positional relationship between the design points and the measurement points; And
And a data output unit for outputting the generated survey data to an internal performance server
Lt; / RTI >
Wherein the survey points and the design points are visually distinguished from each other and displayed on the work screen. 10. The method of claim 9,
The survey data generation device comprises:
Virtual server
Further comprising:
Wherein the data loading unit comprises:
The design drawing conversion data based on the design drawing created by the designer is downloaded from the data conversion server, the downloaded design drawing conversion data is stored in the virtual server of the mobile terminal, and the design drawing conversion data stored in the virtual server is stored Loading,
Wherein the design drawing conversion data is data in a form of JavaScript (js) that enables the data of the design drawing in the dxf format in the data conversion server to be viewed on the web browser of the mobile terminal.

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